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Finding the Fourth Proportional to 392,343.52, 588,520.74 and 111,860.77

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Solution

The fourth proportional to 392,343.52, 588,520.74 and 111,860.77 is: 167,792.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,343.52 : 588,520.74 = 111,860.77 : x
  2. Step 2: Convert to fraction form
    392,343.52/588,520.74 = 111,860.77/x
  3. Step 3: Cross multiply
    392,343.52x = 588,520.74 × 111,860.77
  4. Step 4: Simplify right side
    392,343.52x = 65,832,380,702.42
  5. Step 5: Solve for x
    x = 65,832,380,702.42/392,343.52
  6. Step 6: Final answer
    x = 167,792.71

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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.