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Finding the Fourth Proportional to 275,697.60, 413,449.20 and 126,009.60

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Solution

The fourth proportional to 275,697.60, 413,449.20 and 126,009.60 is: 188,969.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,697.60 : 413,449.20 = 126,009.60 : x
  2. Step 2: Convert to fraction form
    275,697.60/413,449.20 = 126,009.60/x
  3. Step 3: Cross multiply
    275,697.60x = 413,449.20 × 126,009.60
  4. Step 4: Simplify right side
    275,697.60x = 52,098,568,312.32
  5. Step 5: Solve for x
    x = 52,098,568,312.32/275,697.60
  6. Step 6: Final answer
    x = 188,969.97

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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.