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Finding the Fourth Proportional to 392,132.56, 588,253.92 and 155,499.16

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Solution

The fourth proportional to 392,132.56, 588,253.92 and 155,499.16 is: 233,270.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,132.56 : 588,253.92 = 155,499.16 : x
  2. Step 2: Convert to fraction form
    392,132.56/588,253.92 = 155,499.16/x
  3. Step 3: Cross multiply
    392,132.56x = 588,253.92 × 155,499.16
  4. Step 4: Simplify right side
    392,132.56x = 91,472,990,426.71
  5. Step 5: Solve for x
    x = 91,472,990,426.71/392,132.56
  6. Step 6: Final answer
    x = 233,270.58

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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.