Ratio and Proportion: 0.5:20:: X: 200
A.
X=5
B.
X=50
C.
X=4
D.
X=25
To solve the proportion 0.520=X200\frac{0.5}{20} = \frac{X}{200}200.5=200X, you can set up the equation and solve for XXX:
- Write the proportion as an equation:0.520=X200\frac{0.5}{20} = \frac{X}{200}200.5=200X
- Cross-multiply to solve for XXX:0.5×200=20×X0.5 \times 200 = 20 \times X0.5×200=20×X 100=20X100 = 20X100=20X X=10020=5X = \frac{100}{20} = 5X=20100=5
So the value of XXX is:
A. 5