Finding the Fourth Proportional to 283,593.11, 391,366.73 and 156,276.90
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Solution
The fourth proportional to 283,593.11, 391,366.73 and 156,276.90 is: 215,666.66
Step by Step Solution
- Step 1: Write the proportion equation
283,593.11 : 391,366.73 = 156,276.90 : x - Step 2: Convert to fraction form
283,593.11/391,366.73 = 156,276.90/x - Step 3: Cross multiply
283,593.11x = 391,366.73 × 156,276.90 - Step 4: Simplify right side
283,593.11x = 61,161,579,327.54 - Step 5: Solve for x
x = 61,161,579,327.54/283,593.11 - Step 6: Final answer
x = 215,666.66
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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.