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Finding the Fourth Proportional to 265,884.75, 398,740.86 and 88,344.09

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Solution

The fourth proportional to 265,884.75, 398,740.86 and 88,344.09 is: 132,487.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,884.75 : 398,740.86 = 88,344.09 : x
  2. Step 2: Convert to fraction form
    265,884.75/398,740.86 = 88,344.09/x
  3. Step 3: Cross multiply
    265,884.75x = 398,740.86 × 88,344.09
  4. Step 4: Simplify right side
    265,884.75x = 35,226,398,422.52
  5. Step 5: Solve for x
    x = 35,226,398,422.52/265,884.75
  6. Step 6: Final answer
    x = 132,487.47

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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.