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Finding the Fourth Proportional to 278,580.60, 417,714 and 88,996.44

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Solution

The fourth proportional to 278,580.60, 417,714 and 88,996.44 is: 133,444.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,580.60 : 417,714 = 88,996.44 : x
  2. Step 2: Convert to fraction form
    278,580.60/417,714 = 88,996.44/x
  3. Step 3: Cross multiply
    278,580.60x = 417,714 × 88,996.44
  4. Step 4: Simplify right side
    278,580.60x = 37,175,058,938.16
  5. Step 5: Solve for x
    x = 37,175,058,938.16/278,580.60
  6. Step 6: Final answer
    x = 133,444.54

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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.