Finding the Fourth Proportional to 427,614.34, 641,414.63 and 147,134.02
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Solution
The fourth proportional to 427,614.34, 641,414.63 and 147,134.02 is: 220,698.66
Step by Step Solution
- Step 1: Write the proportion equation
427,614.34 : 641,414.63 = 147,134.02 : x - Step 2: Convert to fraction form
427,614.34/641,414.63 = 147,134.02/x - Step 3: Cross multiply
427,614.34x = 641,414.63 × 147,134.02 - Step 4: Simplify right side
427,614.34x = 94,373,912,998.71 - Step 5: Solve for x
x = 94,373,912,998.71/427,614.34 - Step 6: Final answer
x = 220,698.66
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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.