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Finding the Fourth Proportional to 265,778.49, 398,735.10 and 88,286.43

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Solution

The fourth proportional to 265,778.49, 398,735.10 and 88,286.43 is: 132,452.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,778.49 : 398,735.10 = 88,286.43 : x
  2. Step 2: Convert to fraction form
    265,778.49/398,735.10 = 88,286.43/x
  3. Step 3: Cross multiply
    265,778.49x = 398,735.10 × 88,286.43
  4. Step 4: Simplify right side
    265,778.49x = 35,202,898,494.69
  5. Step 5: Solve for x
    x = 35,202,898,494.69/265,778.49
  6. Step 6: Final answer
    x = 132,452.02

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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.