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Finding the Third Proportional to 251.06 and 275.06

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Solution

The third proportional to 251.06 and 275.06 is: 301.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.06 : 275.06 = 275.06 : x
  2. Step 2: Convert to fraction form
    251.06/275.06 = 275.06/x
  3. Step 3: Cross multiply
    251.06x = 275.06 × 275.06
  4. Step 4: Simplify right side
    251.06x = 75,659.38
  5. Step 5: Solve for x
    x = 75,659.38/251.06
  6. Step 6: Final answer
    x = 301.36

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.