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Finding the Fourth Proportional to 154,469.70, 231,704.55 and 49,299.30

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Solution

The fourth proportional to 154,469.70, 231,704.55 and 49,299.30 is: 73,948.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,469.70 : 231,704.55 = 49,299.30 : x
  2. Step 2: Convert to fraction form
    154,469.70/231,704.55 = 49,299.30/x
  3. Step 3: Cross multiply
    154,469.70x = 231,704.55 × 49,299.30
  4. Step 4: Simplify right side
    154,469.70x = 11,422,872,121.82
  5. Step 5: Solve for x
    x = 11,422,872,121.82/154,469.70
  6. Step 6: Final answer
    x = 73,948.95

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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.