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Finding the Fourth Proportional to 300,791.89, 451,171.22 and 101,091.65

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Solution

The fourth proportional to 300,791.89, 451,171.22 and 101,091.65 is: 151,631.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,791.89 : 451,171.22 = 101,091.65 : x
  2. Step 2: Convert to fraction form
    300,791.89/451,171.22 = 101,091.65/x
  3. Step 3: Cross multiply
    300,791.89x = 451,171.22 × 101,091.65
  4. Step 4: Simplify right side
    300,791.89x = 45,609,644,442.97
  5. Step 5: Solve for x
    x = 45,609,644,442.97/300,791.89
  6. Step 6: Final answer
    x = 151,631.90

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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.