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Finding the Fourth Proportional to 249.90, 375.53 and 134.40

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Solution

The fourth proportional to 249.90, 375.53 and 134.40 is: 201.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.90 : 375.53 = 134.40 : x
  2. Step 2: Convert to fraction form
    249.90/375.53 = 134.40/x
  3. Step 3: Cross multiply
    249.90x = 375.53 × 134.40
  4. Step 4: Simplify right side
    249.90x = 50,471.97
  5. Step 5: Solve for x
    x = 50,471.97/249.90
  6. Step 6: Final answer
    x = 201.97

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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.