Finding the Fourth Proportional to 283,755.48, 391,585.58 and 156,435.63
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Solution
The fourth proportional to 283,755.48, 391,585.58 and 156,435.63 is: 215,882.83
Step by Step Solution
- Step 1: Write the proportion equation
283,755.48 : 391,585.58 = 156,435.63 : x - Step 2: Convert to fraction form
283,755.48/391,585.58 = 156,435.63/x - Step 3: Cross multiply
283,755.48x = 391,585.58 × 156,435.63 - Step 4: Simplify right side
283,755.48x = 61,257,936,906.22 - Step 5: Solve for x
x = 61,257,936,906.22/283,755.48 - Step 6: Final answer
x = 215,882.83
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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.