Home / 498,100.86-747,204.62-138,273.21

Finding the Fourth Proportional to 498,100.86, 747,204.62 and 138,273.21

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Solution

The fourth proportional to 498,100.86, 747,204.62 and 138,273.21 is: 207,424.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,100.86 : 747,204.62 = 138,273.21 : x
  2. Step 2: Convert to fraction form
    498,100.86/747,204.62 = 138,273.21/x
  3. Step 3: Cross multiply
    498,100.86x = 747,204.62 × 138,273.21
  4. Step 4: Simplify right side
    498,100.86x = 103,318,381,679.91
  5. Step 5: Solve for x
    x = 103,318,381,679.91/498,100.86
  6. Step 6: Final answer
    x = 207,424.62

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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.