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Finding the Fourth Proportional to 266,004.80, 398,920.80 and 88,481.60

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Solution

The fourth proportional to 266,004.80, 398,920.80 and 88,481.60 is: 132,693.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,004.80 : 398,920.80 = 88,481.60 : x
  2. Step 2: Convert to fraction form
    266,004.80/398,920.80 = 88,481.60/x
  3. Step 3: Cross multiply
    266,004.80x = 398,920.80 × 88,481.60
  4. Step 4: Simplify right side
    266,004.80x = 35,297,150,657.28
  5. Step 5: Solve for x
    x = 35,297,150,657.28/266,004.80
  6. Step 6: Final answer
    x = 132,693.66

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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.