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Finding the Fourth Proportional to 325,769.60, 488,265.60 and 136,229.60

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Solution

The fourth proportional to 325,769.60, 488,265.60 and 136,229.60 is: 204,181.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,769.60 : 488,265.60 = 136,229.60 : x
  2. Step 2: Convert to fraction form
    325,769.60/488,265.60 = 136,229.60/x
  3. Step 3: Cross multiply
    325,769.60x = 488,265.60 × 136,229.60
  4. Step 4: Simplify right side
    325,769.60x = 66,516,227,381.76
  5. Step 5: Solve for x
    x = 66,516,227,381.76/325,769.60
  6. Step 6: Final answer
    x = 204,181.81

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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.