Four and one half is 450%
150%
Half on anything is 50 percent.
One half of something is 50 percent (50%).
4
150% or one and a half time 1/2 = 1 1/2 x 1/2 = 3/4
a whole
4 and 1/4
283/4
5 1/4
1half+1half 3quarters+1quarter
1/4 < 1/3 < 1/2
4 times 1/2 = 2 square inches