Yesterday, I looked at what would happen if you added another 100 seats to Congress. The fact is that you cannot easily solve the problem of unequal representation -- not even by adding 200 seats, or doubling the House in size -- because as you add seats you remove some inequities but replace them with others.
Here is an interesting one I hadn't thought of, which a reader pointed out: California's population is more than forty times that of Delaware. Currently, Delware has three electoral votes to California's 55, a ratio of 18-to-1.
If you add 100 members to the House, California gains 11 seats, and Delaware gains one. So California would have 68 electoral votes to Delaware's 4 -- a ratio of only 17-to-1.