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Finding the Fourth Proportional to 253,255.78, 379,758.85 and 88,924.25

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Solution

The fourth proportional to 253,255.78, 379,758.85 and 88,924.25 is: 133,342.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,255.78 : 379,758.85 = 88,924.25 : x
  2. Step 2: Convert to fraction form
    253,255.78/379,758.85 = 88,924.25/x
  3. Step 3: Cross multiply
    253,255.78x = 379,758.85 × 88,924.25
  4. Step 4: Simplify right side
    253,255.78x = 33,769,769,508.06
  5. Step 5: Solve for x
    x = 33,769,769,508.06/253,255.78
  6. Step 6: Final answer
    x = 133,342.54

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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.