Finding the Fourth Proportional to 283,817.61, 425,728.10 and 84,139.68
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Solution
The fourth proportional to 283,817.61, 425,728.10 and 84,139.68 is: 126,210.02
Step by Step Solution
- Step 1: Write the proportion equation
283,817.61 : 425,728.10 = 84,139.68 : x - Step 2: Convert to fraction form
283,817.61/425,728.10 = 84,139.68/x - Step 3: Cross multiply
283,817.61x = 425,728.10 × 84,139.68 - Step 4: Simplify right side
283,817.61x = 35,820,625,680.31 - Step 5: Solve for x
x = 35,820,625,680.31/283,817.61 - Step 6: Final answer
x = 126,210.02
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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.