Home / 243,310.25-335,719.45-135,863.75

Finding the Fourth Proportional to 243,310.25, 335,719.45 and 135,863.75

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Solution

The fourth proportional to 243,310.25, 335,719.45 and 135,863.75 is: 187,464.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,310.25 : 335,719.45 = 135,863.75 : x
  2. Step 2: Convert to fraction form
    243,310.25/335,719.45 = 135,863.75/x
  3. Step 3: Cross multiply
    243,310.25x = 335,719.45 × 135,863.75
  4. Step 4: Simplify right side
    243,310.25x = 45,612,103,424.94
  5. Step 5: Solve for x
    x = 45,612,103,424.94/243,310.25
  6. Step 6: Final answer
    x = 187,464.78

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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.