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Finding the Fourth Proportional to 300,668.62, 451,151.12 and 140,755.38

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Solution

The fourth proportional to 300,668.62, 451,151.12 and 140,755.38 is: 211,202.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,668.62 : 451,151.12 = 140,755.38 : x
  2. Step 2: Convert to fraction form
    300,668.62/451,151.12 = 140,755.38/x
  3. Step 3: Cross multiply
    300,668.62x = 451,151.12 × 140,755.38
  4. Step 4: Simplify right side
    300,668.62x = 63,501,947,333.03
  5. Step 5: Solve for x
    x = 63,501,947,333.03/300,668.62
  6. Step 6: Final answer
    x = 211,202.44

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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.