Home / 288,376.20-432,605.88-88,713.36

Finding the Fourth Proportional to 288,376.20, 432,605.88 and 88,713.36

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Solution

The fourth proportional to 288,376.20, 432,605.88 and 88,713.36 is: 133,082.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,376.20 : 432,605.88 = 88,713.36 : x
  2. Step 2: Convert to fraction form
    288,376.20/432,605.88 = 88,713.36/x
  3. Step 3: Cross multiply
    288,376.20x = 432,605.88 × 88,713.36
  4. Step 4: Simplify right side
    288,376.20x = 38,377,921,170.56
  5. Step 5: Solve for x
    x = 38,377,921,170.56/288,376.20
  6. Step 6: Final answer
    x = 133,082.83

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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.