Finding the Fourth Proportional to 283,841.55, 425,689.74 and 84,115.31
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Solution
The fourth proportional to 283,841.55, 425,689.74 and 84,115.31 is: 126,151.45
Step by Step Solution
- Step 1: Write the proportion equation
283,841.55 : 425,689.74 = 84,115.31 : x - Step 2: Convert to fraction form
283,841.55/425,689.74 = 84,115.31/x - Step 3: Cross multiply
283,841.55x = 425,689.74 × 84,115.31 - Step 4: Simplify right side
283,841.55x = 35,807,022,315.47 - Step 5: Solve for x
x = 35,807,022,315.47/283,841.55 - Step 6: Final answer
x = 126,151.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.