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Finding the Fourth Proportional to 392,651.38, 588,902.50 and 108,271.63

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Solution

The fourth proportional to 392,651.38, 588,902.50 and 108,271.63 is: 162,386.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,651.38 : 588,902.50 = 108,271.63 : x
  2. Step 2: Convert to fraction form
    392,651.38/588,902.50 = 108,271.63/x
  3. Step 3: Cross multiply
    392,651.38x = 588,902.50 × 108,271.63
  4. Step 4: Simplify right side
    392,651.38x = 63,761,433,586.08
  5. Step 5: Solve for x
    x = 63,761,433,586.08/392,651.38
  6. Step 6: Final answer
    x = 162,386.88

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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.