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Finding the Third Proportional to 157.25 and 199

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Solution

The third proportional to 157.25 and 199 is: 251.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    157.25 : 199 = 199 : x
  2. Step 2: Convert to fraction form
    157.25/199 = 199/x
  3. Step 3: Cross multiply
    157.25x = 199 × 199
  4. Step 4: Simplify right side
    157.25x = 39,601
  5. Step 5: Solve for x
    x = 39,601/157.25
  6. Step 6: Final answer
    x = 251.83

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Why These Related Problems?

These problems maintain the same ratio (1.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.