States that have ratified the Congressional Apportionment Act: Connecticut Kentucky Maryland New Hampshire New Jersey New York North Carolina Pennsylvania Rhode Island South Carolina Vermont Virginia And there are four ways to change the Constitution: (1) Both houses propose an amendment with a two-thirds vote, and three-fourths of the state legislatures approve. Twenty-six of the 27 amendments were approved in this manner. (2) Both houses propose an amendment with a two-thirds vote, and three-fourths of the states approve the amendment via ratifying conventions. Only the 21st Amendment, which repealed Prohibition, was passed in this manner. (3) Two-thirds of the state legislatures call on Congress to hold a constitutional convention, and three-fourths of the state legislatures approve the amendment. (4) Two-thirds of the state legislatures call on Congress to hold a constitutional convention, and three-fourths of the states approve the amendment via ratifying conventions." "There are actually four ways.