Finding the Fourth Proportional to 283,444.49, 391,153.37 and 156,120.08
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Solution
The fourth proportional to 283,444.49, 391,153.37 and 156,120.08 is: 215,445.70
Step by Step Solution
- Step 1: Write the proportion equation
283,444.49 : 391,153.37 = 156,120.08 : x - Step 2: Convert to fraction form
283,444.49/391,153.37 = 156,120.08/x - Step 3: Cross multiply
283,444.49x = 391,153.37 × 156,120.08 - Step 4: Simplify right side
283,444.49x = 61,066,895,613.95 - Step 5: Solve for x
x = 61,066,895,613.95/283,444.49 - Step 6: Final answer
x = 215,445.70
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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.