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Finding the Fourth Proportional to 252,080.70, 378,121.05 and 225,836.70

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Solution

The fourth proportional to 252,080.70, 378,121.05 and 225,836.70 is: 338,755.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,080.70 : 378,121.05 = 225,836.70 : x
  2. Step 2: Convert to fraction form
    252,080.70/378,121.05 = 225,836.70/x
  3. Step 3: Cross multiply
    252,080.70x = 378,121.05 × 225,836.70
  4. Step 4: Simplify right side
    252,080.70x = 85,393,610,132.54
  5. Step 5: Solve for x
    x = 85,393,610,132.54/252,080.70
  6. Step 6: Final answer
    x = 338,755.05

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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.