Finding the Fourth Proportional to 442,863.20, 664,294.80 and 162,489.80
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Solution
The fourth proportional to 442,863.20, 664,294.80 and 162,489.80 is: 243,734.70
Step by Step Solution
- Step 1: Write the proportion equation
442,863.20 : 664,294.80 = 162,489.80 : x - Step 2: Convert to fraction form
442,863.20/664,294.80 = 162,489.80/x - Step 3: Cross multiply
442,863.20x = 664,294.80 × 162,489.80 - Step 4: Simplify right side
442,863.20x = 107,941,129,193.04 - Step 5: Solve for x
x = 107,941,129,193.04/442,863.20 - Step 6: Final answer
x = 243,734.70
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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.