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Finding the Fourth Proportional to 278,452.64, 417,675.42 and 88,910.60

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Solution

The fourth proportional to 278,452.64, 417,675.42 and 88,910.60 is: 133,364.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,452.64 : 417,675.42 = 88,910.60 : x
  2. Step 2: Convert to fraction form
    278,452.64/417,675.42 = 88,910.60/x
  3. Step 3: Cross multiply
    278,452.64x = 417,675.42 × 88,910.60
  4. Step 4: Simplify right side
    278,452.64x = 37,135,770,109.07
  5. Step 5: Solve for x
    x = 37,135,770,109.07/278,452.64
  6. Step 6: Final answer
    x = 133,364.76

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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.