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Finding the Fourth Proportional to 392,676.38, 588,677.22 and 136,475.66

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Solution

The fourth proportional to 392,676.38, 588,677.22 and 136,475.66 is: 204,596.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,676.38 : 588,677.22 = 136,475.66 : x
  2. Step 2: Convert to fraction form
    392,676.38/588,677.22 = 136,475.66/x
  3. Step 3: Cross multiply
    392,676.38x = 588,677.22 × 136,475.66
  4. Step 4: Simplify right side
    392,676.38x = 80,340,109,183.08
  5. Step 5: Solve for x
    x = 80,340,109,183.08/392,676.38
  6. Step 6: Final answer
    x = 204,596.24

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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.