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Finding the Third Proportional to 349 and 758.75

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Solution

The third proportional to 349 and 758.75 is: 1,649.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    349 : 758.75 = 758.75 : x
  2. Step 2: Convert to fraction form
    349/758.75 = 758.75/x
  3. Step 3: Cross multiply
    349x = 758.75 × 758.75
  4. Step 4: Simplify right side
    349x = 575,701.56
  5. Step 5: Solve for x
    x = 575,701.56/349
  6. Step 6: Final answer
    x = 1,649.57

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.