Finding the Fourth Proportional to 291,651.62, 402,479.13 and 157,515.62
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Solution
The fourth proportional to 291,651.62, 402,479.13 and 157,515.62 is: 217,371.50
Step by Step Solution
- Step 1: Write the proportion equation
291,651.62 : 402,479.13 = 157,515.62 : x - Step 2: Convert to fraction form
291,651.62/402,479.13 = 157,515.62/x - Step 3: Cross multiply
291,651.62x = 402,479.13 × 157,515.62 - Step 4: Simplify right side
291,651.62x = 63,396,749,699.01 - Step 5: Solve for x
x = 63,396,749,699.01/291,651.62 - Step 6: Final answer
x = 217,371.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.