Finding the Fourth Proportional to 283,656.36, 391,444.97 and 156,331.92
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Solution
The fourth proportional to 283,656.36, 391,444.97 and 156,331.92 is: 215,737.60
Step by Step Solution
- Step 1: Write the proportion equation
283,656.36 : 391,444.97 = 156,331.92 : x - Step 2: Convert to fraction form
283,656.36/391,444.97 = 156,331.92/x - Step 3: Cross multiply
283,656.36x = 391,444.97 × 156,331.92 - Step 4: Simplify right side
283,656.36x = 61,195,342,952.78 - Step 5: Solve for x
x = 61,195,342,952.78/283,656.36 - Step 6: Final answer
x = 215,737.60
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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.