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Finding the Third Proportional to 564.75 and 749.38

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Solution

The third proportional to 564.75 and 749.38 is: 994.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    564.75 : 749.38 = 749.38 : x
  2. Step 2: Convert to fraction form
    564.75/749.38 = 749.38/x
  3. Step 3: Cross multiply
    564.75x = 749.38 × 749.38
  4. Step 4: Simplify right side
    564.75x = 561,562.89
  5. Step 5: Solve for x
    x = 561,562.89/564.75
  6. Step 6: Final answer
    x = 994.36

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.