Finding the Fourth Proportional to 283,445.47, 391,154.74 and 156,121.07
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Solution
The fourth proportional to 283,445.47, 391,154.74 and 156,121.07 is: 215,447.07
Step by Step Solution
- Step 1: Write the proportion equation
283,445.47 : 391,154.74 = 156,121.07 : x - Step 2: Convert to fraction form
283,445.47/391,154.74 = 156,121.07/x - Step 3: Cross multiply
283,445.47x = 391,154.74 × 156,121.07 - Step 4: Simplify right side
283,445.47x = 61,067,494,198.30 - Step 5: Solve for x
x = 61,067,494,198.30/283,445.47 - Step 6: Final answer
x = 215,447.07
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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.