Finding the Fourth Proportional to 283,531.97, 391,275.09 and 156,207.26
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Solution
The fourth proportional to 283,531.97, 391,275.09 and 156,207.26 is: 215,566.55
Step by Step Solution
- Step 1: Write the proportion equation
283,531.97 : 391,275.09 = 156,207.26 : x - Step 2: Convert to fraction form
283,531.97/391,275.09 = 156,207.26/x - Step 3: Cross multiply
283,531.97x = 391,275.09 × 156,207.26 - Step 4: Simplify right side
283,531.97x = 61,120,009,715.15 - Step 5: Solve for x
x = 61,120,009,715.15/283,531.97 - Step 6: Final answer
x = 215,566.55
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1.5x scale
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.