Finding the Fourth Proportional to 462,081.70, 693,122.55 and 129,657.70
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Solution
The fourth proportional to 462,081.70, 693,122.55 and 129,657.70 is: 194,486.55
Step by Step Solution
- Step 1: Write the proportion equation
462,081.70 : 693,122.55 = 129,657.70 : x - Step 2: Convert to fraction form
462,081.70/693,122.55 = 129,657.70/x - Step 3: Cross multiply
462,081.70x = 693,122.55 × 129,657.70 - Step 4: Simplify right side
462,081.70x = 89,868,675,651.14 - Step 5: Solve for x
x = 89,868,675,651.14/462,081.70 - Step 6: Final answer
x = 194,486.55
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Similar ratio
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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.