Home / 252,679.28-378,414.66-145,739.05

Finding the Fourth Proportional to 252,679.28, 378,414.66 and 145,739.05

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Solution

The fourth proportional to 252,679.28, 378,414.66 and 145,739.05 is: 218,260.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,679.28 : 378,414.66 = 145,739.05 : x
  2. Step 2: Convert to fraction form
    252,679.28/378,414.66 = 145,739.05/x
  3. Step 3: Cross multiply
    252,679.28x = 378,414.66 × 145,739.05
  4. Step 4: Simplify right side
    252,679.28x = 55,149,792,654.96
  5. Step 5: Solve for x
    x = 55,149,792,654.96/252,679.28
  6. Step 6: Final answer
    x = 218,260.06

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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.