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Finding the Fourth Proportional to 500,158.92, 750,312.18 and 145,126.80

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Solution

The fourth proportional to 500,158.92, 750,312.18 and 145,126.80 is: 217,711.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,158.92 : 750,312.18 = 145,126.80 : x
  2. Step 2: Convert to fraction form
    500,158.92/750,312.18 = 145,126.80/x
  3. Step 3: Cross multiply
    500,158.92x = 750,312.18 × 145,126.80
  4. Step 4: Simplify right side
    500,158.92x = 108,890,405,684.42
  5. Step 5: Solve for x
    x = 108,890,405,684.42/500,158.92
  6. Step 6: Final answer
    x = 217,711.61

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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.