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Finding the Fourth Proportional to 248.38, 341.18 and 201.55

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Solution

The fourth proportional to 248.38, 341.18 and 201.55 is: 276.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.38 : 341.18 = 201.55 : x
  2. Step 2: Convert to fraction form
    248.38/341.18 = 201.55/x
  3. Step 3: Cross multiply
    248.38x = 341.18 × 201.55
  4. Step 4: Simplify right side
    248.38x = 68,764.83
  5. Step 5: Solve for x
    x = 68,764.83/248.38
  6. Step 6: Final answer
    x = 276.85

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.