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Finding the Fourth Proportional to 252,003.60, 378,037.80 and 125,708.40

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Solution

The fourth proportional to 252,003.60, 378,037.80 and 125,708.40 is: 188,578.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,003.60 : 378,037.80 = 125,708.40 : x
  2. Step 2: Convert to fraction form
    252,003.60/378,037.80 = 125,708.40/x
  3. Step 3: Cross multiply
    252,003.60x = 378,037.80 × 125,708.40
  4. Step 4: Simplify right side
    252,003.60x = 47,522,526,977.52
  5. Step 5: Solve for x
    x = 47,522,526,977.52/252,003.60
  6. Step 6: Final answer
    x = 188,578.76

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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.