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Finding the Fourth Proportional to 240,321.10, 360,481.65 and 115,905.10

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Solution

The fourth proportional to 240,321.10, 360,481.65 and 115,905.10 is: 173,857.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,321.10 : 360,481.65 = 115,905.10 : x
  2. Step 2: Convert to fraction form
    240,321.10/360,481.65 = 115,905.10/x
  3. Step 3: Cross multiply
    240,321.10x = 360,481.65 × 115,905.10
  4. Step 4: Simplify right side
    240,321.10x = 41,781,661,691.42
  5. Step 5: Solve for x
    x = 41,781,661,691.42/240,321.10
  6. Step 6: Final answer
    x = 173,857.65

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1.5x scale

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.