Finding the Fourth Proportional to 283,444.62, 391,148.88 and 156,132.06
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Solution
The fourth proportional to 283,444.62, 391,148.88 and 156,132.06 is: 215,459.66
Step by Step Solution
- Step 1: Write the proportion equation
283,444.62 : 391,148.88 = 156,132.06 : x - Step 2: Convert to fraction form
283,444.62/391,148.88 = 156,132.06/x - Step 3: Cross multiply
283,444.62x = 391,148.88 × 156,132.06 - Step 4: Simplify right side
283,444.62x = 61,070,880,401.09 - Step 5: Solve for x
x = 61,070,880,401.09/283,444.62 - Step 6: Final answer
x = 215,459.66
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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.