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Finding the Fourth Proportional to 265,940.20, 398,827.68 and 88,404.40

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Solution

The fourth proportional to 265,940.20, 398,827.68 and 88,404.40 is: 132,579.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,940.20 : 398,827.68 = 88,404.40 : x
  2. Step 2: Convert to fraction form
    265,940.20/398,827.68 = 88,404.40/x
  3. Step 3: Cross multiply
    265,940.20x = 398,827.68 × 88,404.40
  4. Step 4: Simplify right side
    265,940.20x = 35,258,121,753.79
  5. Step 5: Solve for x
    x = 35,258,121,753.79/265,940.20
  6. Step 6: Final answer
    x = 132,579.14

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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.