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Finding the Fourth Proportional to 252,171.60, 378,694.80 and 134,073.60

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Solution

The fourth proportional to 252,171.60, 378,694.80 and 134,073.60 is: 201,342.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,171.60 : 378,694.80 = 134,073.60 : x
  2. Step 2: Convert to fraction form
    252,171.60/378,694.80 = 134,073.60/x
  3. Step 3: Cross multiply
    252,171.60x = 378,694.80 × 134,073.60
  4. Step 4: Simplify right side
    252,171.60x = 50,772,975,137.28
  5. Step 5: Solve for x
    x = 50,772,975,137.28/252,171.60
  6. Step 6: Final answer
    x = 201,342.96

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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.