Three of the four Republican House members whose uncertainties about the tax-hike vote were profiled Thursday in The Washington Post sided with President Reagan on the measure yesterday.

Rep. James A. Courter (N.J.), who had withstood all previous pleas by Reagan, voted yes despite what he called "serious reservations about several provisions" of the bill, in order to "support the president in his efforts to reduce the budget deficit."

Rep. Charles Pashayan Jr. (Calif.), who expressed similar misgivings, voted yes, saying, "I went for the big picture, rather than seeking perfection on all of the details. It's a gamble either way."

Rep. David O'B. Martin (N.Y.) did the same, but Rep. Dave Dreier (Calif.) held out against the bill, even though he said, "I had sleepless nights where I could see Ronald Reagan staring me in the eye and saying, 'Dave Dreier, I need your vote.' "

Before their final decisions, all four voted against the rule barring consideration of amendments. That enabled those who supported the measure on final passage to say that they had tried to open it to changes that might have removed some provisions unpopular with their constituents.

Those included withholding of tax on dividends, interest and tips, which the four congressmen mentioned as the source of many critical comments being received from home.

Courter spoke for all of them when he said, "This has been the most difficult decision that I have had to make during my years in Congress."

Among area senators, Charles McC. Mathias Jr. (R-Md.) voted for the increase, while Paul S. Sarbanes (D-Md.), John W. Warner (R-Va.) and Harry F. Byrd Jr. (Ind.-Va.) voted against.