Home / 325,234.20-487,592.10-138,091.80

Finding the Fourth Proportional to 325,234.20, 487,592.10 and 138,091.80

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Solution

The fourth proportional to 325,234.20, 487,592.10 and 138,091.80 is: 207,027.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,234.20 : 487,592.10 = 138,091.80 : x
  2. Step 2: Convert to fraction form
    325,234.20/487,592.10 = 138,091.80/x
  3. Step 3: Cross multiply
    325,234.20x = 487,592.10 × 138,091.80
  4. Step 4: Simplify right side
    325,234.20x = 67,332,470,754.78
  5. Step 5: Solve for x
    x = 67,332,470,754.78/325,234.20
  6. Step 6: Final answer
    x = 207,027.65

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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.