Finding the Fourth Proportional to 430.63, 645.99 and 156.68
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Solution
The fourth proportional to 430.63, 645.99 and 156.68 is: 235.04
Step by Step Solution
- Step 1: Write the proportion equation
430.63 : 645.99 = 156.68 : x - Step 2: Convert to fraction form
430.63/645.99 = 156.68/x - Step 3: Cross multiply
430.63x = 645.99 × 156.68 - Step 4: Simplify right side
430.63x = 101,213.71 - Step 5: Solve for x
x = 101,213.71/430.63 - Step 6: Final answer
x = 235.04
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