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Finding the Fourth Proportional to 273.31, 408.90 and 250.33

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Solution

The fourth proportional to 273.31, 408.90 and 250.33 is: 374.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.31 : 408.90 = 250.33 : x
  2. Step 2: Convert to fraction form
    273.31/408.90 = 250.33/x
  3. Step 3: Cross multiply
    273.31x = 408.90 × 250.33
  4. Step 4: Simplify right side
    273.31x = 102,358.38
  5. Step 5: Solve for x
    x = 102,358.38/273.31
  6. Step 6: Final answer
    x = 374.51

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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.