Home / 225,395.38-311,053.05-123,425.15

Finding the Fourth Proportional to 225,395.38, 311,053.05 and 123,425.15

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Solution

The fourth proportional to 225,395.38, 311,053.05 and 123,425.15 is: 170,330.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,395.38 : 311,053.05 = 123,425.15 : x
  2. Step 2: Convert to fraction form
    225,395.38/311,053.05 = 123,425.15/x
  3. Step 3: Cross multiply
    225,395.38x = 311,053.05 × 123,425.15
  4. Step 4: Simplify right side
    225,395.38x = 38,391,767,798.94
  5. Step 5: Solve for x
    x = 38,391,767,798.94/225,395.38
  6. Step 6: Final answer
    x = 170,330.77

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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.