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Finding the Fourth Proportional to 144,958.78, 217,469.42 and 43,748.37

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Solution

The fourth proportional to 144,958.78, 217,469.42 and 43,748.37 is: 65,631.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,958.78 : 217,469.42 = 43,748.37 : x
  2. Step 2: Convert to fraction form
    144,958.78/217,469.42 = 43,748.37/x
  3. Step 3: Cross multiply
    144,958.78x = 217,469.42 × 43,748.37
  4. Step 4: Simplify right side
    144,958.78x = 9,513,933,115.41
  5. Step 5: Solve for x
    x = 9,513,933,115.41/144,958.78
  6. Step 6: Final answer
    x = 65,631.99

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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.