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Finding the Fourth Proportional to 445,288.72, 667,963.88 and 179,049.28

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Solution

The fourth proportional to 445,288.72, 667,963.88 and 179,049.28 is: 268,586.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,288.72 : 667,963.88 = 179,049.28 : x
  2. Step 2: Convert to fraction form
    445,288.72/667,963.88 = 179,049.28/x
  3. Step 3: Cross multiply
    445,288.72x = 667,963.88 × 179,049.28
  4. Step 4: Simplify right side
    445,288.72x = 119,598,451,780.01
  5. Step 5: Solve for x
    x = 119,598,451,780.01/445,288.72
  6. Step 6: Final answer
    x = 268,586.30

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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.