Finding the Fourth Proportional to 283,364.62, 391,043.18 and 156,039.92
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Solution
The fourth proportional to 283,364.62, 391,043.18 and 156,039.92 is: 215,335.09
Step by Step Solution
- Step 1: Write the proportion equation
283,364.62 : 391,043.18 = 156,039.92 : x - Step 2: Convert to fraction form
283,364.62/391,043.18 = 156,039.92/x - Step 3: Cross multiply
283,364.62x = 391,043.18 × 156,039.92 - Step 4: Simplify right side
283,364.62x = 61,018,346,523.75 - Step 5: Solve for x
x = 61,018,346,523.75/283,364.62 - Step 6: Final answer
x = 215,335.09
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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.