One ratio that has shifted that I'm more interested in is the Senate side. Each Senator and representative counts toward and electoral representative. The early growth of representatives has never been offset with a corresponding increase in Senatorial (sovereign State) represenation. Consider how Bush won 30 States, but nearly lost the election.
The amendment to make Senators popularly elected, instead of leaving it to State legislatures to determine, further weakened importance of State sovereignty as a check on federal excess.
Perhaps a return to more Republican methods is warranted. The push toward Democracy is, as the Founders warned, imperilling individual rights and leading us to bankruptcy.
Plus a popularly elected Senate, rather than one elected by state legislatures, is largely responsible for the huge cost of current Senate races (and the alleged "need" for campaign finance reform).