Finding the Fourth Proportional to 315,691.26, 435,625.34 and 177,892.62
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Solution
The fourth proportional to 315,691.26, 435,625.34 and 177,892.62 is: 245,475.70
Step by Step Solution
- Step 1: Write the proportion equation
315,691.26 : 435,625.34 = 177,892.62 : x - Step 2: Convert to fraction form
315,691.26/435,625.34 = 177,892.62/x - Step 3: Cross multiply
315,691.26x = 435,625.34 × 177,892.62 - Step 4: Simplify right side
315,691.26x = 77,494,533,070.99 - Step 5: Solve for x
x = 77,494,533,070.99/315,691.26 - Step 6: Final answer
x = 245,475.70
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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.