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Finding the Fourth Proportional to 265,945.60, 398,821.20 and 88,458.40

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Solution

The fourth proportional to 265,945.60, 398,821.20 and 88,458.40 is: 132,655.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,945.60 : 398,821.20 = 88,458.40 : x
  2. Step 2: Convert to fraction form
    265,945.60/398,821.20 = 88,458.40/x
  3. Step 3: Cross multiply
    265,945.60x = 398,821.20 × 88,458.40
  4. Step 4: Simplify right side
    265,945.60x = 35,279,085,238.08
  5. Step 5: Solve for x
    x = 35,279,085,238.08/265,945.60
  6. Step 6: Final answer
    x = 132,655.27

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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.