Home / 225,961.17-311,836.19-135,331.89

Finding the Fourth Proportional to 225,961.17, 311,836.19 and 135,331.89

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Solution

The fourth proportional to 225,961.17, 311,836.19 and 135,331.89 is: 186,763.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,961.17 : 311,836.19 = 135,331.89 : x
  2. Step 2: Convert to fraction form
    225,961.17/311,836.19 = 135,331.89/x
  3. Step 3: Cross multiply
    225,961.17x = 311,836.19 × 135,331.89
  4. Step 4: Simplify right side
    225,961.17x = 42,201,380,286.44
  5. Step 5: Solve for x
    x = 42,201,380,286.44/225,961.17
  6. Step 6: Final answer
    x = 186,763.86

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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.