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Finding the Third Proportional to 267 and 553.25

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Solution

The third proportional to 267 and 553.25 is: 1,146.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    267 : 553.25 = 553.25 : x
  2. Step 2: Convert to fraction form
    267/553.25 = 553.25/x
  3. Step 3: Cross multiply
    267x = 553.25 × 553.25
  4. Step 4: Simplify right side
    267x = 306,085.56
  5. Step 5: Solve for x
    x = 306,085.56/267
  6. Step 6: Final answer
    x = 1,146.39

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.