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Finding the Fourth Proportional to 345,793.46, 518,565.38 and 146,129.27

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Solution

The fourth proportional to 345,793.46, 518,565.38 and 146,129.27 is: 219,141.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,793.46 : 518,565.38 = 146,129.27 : x
  2. Step 2: Convert to fraction form
    345,793.46/518,565.38 = 146,129.27/x
  3. Step 3: Cross multiply
    345,793.46x = 518,565.38 × 146,129.27
  4. Step 4: Simplify right side
    345,793.46x = 75,777,577,103.20
  5. Step 5: Solve for x
    x = 75,777,577,103.20/345,793.46
  6. Step 6: Final answer
    x = 219,141.15

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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.