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Finding the Fourth Proportional to 218,624.80, 327,937.20 and 130,151.20

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Solution

The fourth proportional to 218,624.80, 327,937.20 and 130,151.20 is: 195,226.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,624.80 : 327,937.20 = 130,151.20 : x
  2. Step 2: Convert to fraction form
    218,624.80/327,937.20 = 130,151.20/x
  3. Step 3: Cross multiply
    218,624.80x = 327,937.20 × 130,151.20
  4. Step 4: Simplify right side
    218,624.80x = 42,681,420,104.64
  5. Step 5: Solve for x
    x = 42,681,420,104.64/218,624.80
  6. Step 6: Final answer
    x = 195,226.80

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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.