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Finding the Fourth Proportional to 392,050.32, 588,035.16 and 126,001.68

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Solution

The fourth proportional to 392,050.32, 588,035.16 and 126,001.68 is: 188,989.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,050.32 : 588,035.16 = 126,001.68 : x
  2. Step 2: Convert to fraction form
    392,050.32/588,035.16 = 126,001.68/x
  3. Step 3: Cross multiply
    392,050.32x = 588,035.16 × 126,001.68
  4. Step 4: Simplify right side
    392,050.32x = 74,093,418,059.07
  5. Step 5: Solve for x
    x = 74,093,418,059.07/392,050.32
  6. Step 6: Final answer
    x = 188,989.56

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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.