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Finding the Third Proportional to 696.38 and 754.88

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Solution

The third proportional to 696.38 and 754.88 is: 818.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    696.38 : 754.88 = 754.88 : x
  2. Step 2: Convert to fraction form
    696.38/754.88 = 754.88/x
  3. Step 3: Cross multiply
    696.38x = 754.88 × 754.88
  4. Step 4: Simplify right side
    696.38x = 569,836.27
  5. Step 5: Solve for x
    x = 569,836.27/696.38
  6. Step 6: Final answer
    x = 818.29

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.