Home / 498,892.20-748,265.40-143,869.20

Finding the Fourth Proportional to 498,892.20, 748,265.40 and 143,869.20

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Solution

The fourth proportional to 498,892.20, 748,265.40 and 143,869.20 is: 215,782.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,892.20 : 748,265.40 = 143,869.20 : x
  2. Step 2: Convert to fraction form
    498,892.20/748,265.40 = 143,869.20/x
  3. Step 3: Cross multiply
    498,892.20x = 748,265.40 × 143,869.20
  4. Step 4: Simplify right side
    498,892.20x = 107,652,344,485.68
  5. Step 5: Solve for x
    x = 107,652,344,485.68/498,892.20
  6. Step 6: Final answer
    x = 215,782.78

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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.