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Finding the Fourth Proportional to 392,476.62, 588,772.53 and 126,149.34

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Solution

The fourth proportional to 392,476.62, 588,772.53 and 126,149.34 is: 189,242.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,476.62 : 588,772.53 = 126,149.34 : x
  2. Step 2: Convert to fraction form
    392,476.62/588,772.53 = 126,149.34/x
  3. Step 3: Cross multiply
    392,476.62x = 588,772.53 × 126,149.34
  4. Step 4: Simplify right side
    392,476.62x = 74,273,266,069.63
  5. Step 5: Solve for x
    x = 74,273,266,069.63/392,476.62
  6. Step 6: Final answer
    x = 189,242.52

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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.