Home / 218,633.28-327,987.24-100,314.72

Finding the Fourth Proportional to 218,633.28, 327,987.24 and 100,314.72

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Solution

The fourth proportional to 218,633.28, 327,987.24 and 100,314.72 is: 150,489.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,633.28 : 327,987.24 = 100,314.72 : x
  2. Step 2: Convert to fraction form
    218,633.28/327,987.24 = 100,314.72/x
  3. Step 3: Cross multiply
    218,633.28x = 327,987.24 × 100,314.72
  4. Step 4: Simplify right side
    218,633.28x = 32,901,948,144.17
  5. Step 5: Solve for x
    x = 32,901,948,144.17/218,633.28
  6. Step 6: Final answer
    x = 150,489.20

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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.