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Finding the Fourth Proportional to 265,740.80, 398,524.80 and 88,217.60

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Solution

The fourth proportional to 265,740.80, 398,524.80 and 88,217.60 is: 132,297.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,740.80 : 398,524.80 = 88,217.60 : x
  2. Step 2: Convert to fraction form
    265,740.80/398,524.80 = 88,217.60/x
  3. Step 3: Cross multiply
    265,740.80x = 398,524.80 × 88,217.60
  4. Step 4: Simplify right side
    265,740.80x = 35,156,901,396.48
  5. Step 5: Solve for x
    x = 35,156,901,396.48/265,740.80
  6. Step 6: Final answer
    x = 132,297.72

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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.