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Finding the Fourth Proportional to 252,447.39, 378,668.05 and 72,537.26

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Solution

The fourth proportional to 252,447.39, 378,668.05 and 72,537.26 is: 108,805.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,447.39 : 378,668.05 = 72,537.26 : x
  2. Step 2: Convert to fraction form
    252,447.39/378,668.05 = 72,537.26/x
  3. Step 3: Cross multiply
    252,447.39x = 378,668.05 × 72,537.26
  4. Step 4: Simplify right side
    252,447.39x = 27,467,540,721.86
  5. Step 5: Solve for x
    x = 27,467,540,721.86/252,447.39
  6. Step 6: Final answer
    x = 108,805.01

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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.