Home / 263,974.20-396,079.03-121,743

Finding the Fourth Proportional to 263,974.20, 396,079.03 and 121,743

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Solution

The fourth proportional to 263,974.20, 396,079.03 and 121,743 is: 182,668.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,974.20 : 396,079.03 = 121,743 : x
  2. Step 2: Convert to fraction form
    263,974.20/396,079.03 = 121,743/x
  3. Step 3: Cross multiply
    263,974.20x = 396,079.03 × 121,743
  4. Step 4: Simplify right side
    263,974.20x = 48,219,848,987.87
  5. Step 5: Solve for x
    x = 48,219,848,987.87/263,974.20
  6. Step 6: Final answer
    x = 182,668.79

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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.