Finding the Fourth Proportional to 355,414.20, 533,148.82 and 118,757.70
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Solution
The fourth proportional to 355,414.20, 533,148.82 and 118,757.70 is: 178,145.75
Step by Step Solution
- Step 1: Write the proportion equation
355,414.20 : 533,148.82 = 118,757.70 : x - Step 2: Convert to fraction form
355,414.20/533,148.82 = 118,757.70/x - Step 3: Cross multiply
355,414.20x = 533,148.82 × 118,757.70 - Step 4: Simplify right side
355,414.20x = 63,315,527,620.91 - Step 5: Solve for x
x = 63,315,527,620.91/355,414.20 - Step 6: Final answer
x = 178,145.75
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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.