Home / 279,719.97-386,013.60-152,395.56

Finding the Fourth Proportional to 279,719.97, 386,013.60 and 152,395.56

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Solution

The fourth proportional to 279,719.97, 386,013.60 and 152,395.56 is: 210,305.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,719.97 : 386,013.60 = 152,395.56 : x
  2. Step 2: Convert to fraction form
    279,719.97/386,013.60 = 152,395.56/x
  3. Step 3: Cross multiply
    279,719.97x = 386,013.60 × 152,395.56
  4. Step 4: Simplify right side
    279,719.97x = 58,826,758,739.62
  5. Step 5: Solve for x
    x = 58,826,758,739.62/279,719.97
  6. Step 6: Final answer
    x = 210,305.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.