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Finding the Third Proportional to 757.69 and 998.16

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Solution

The third proportional to 757.69 and 998.16 is: 1,314.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    757.69 : 998.16 = 998.16 : x
  2. Step 2: Convert to fraction form
    757.69/998.16 = 998.16/x
  3. Step 3: Cross multiply
    757.69x = 998.16 × 998.16
  4. Step 4: Simplify right side
    757.69x = 996,315.90
  5. Step 5: Solve for x
    x = 996,315.90/757.69
  6. Step 6: Final answer
    x = 1,314.94

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.