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Finding the Third Proportional to 349.88 and 616.50

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Solution

The third proportional to 349.88 and 616.50 is: 1,086.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.88 : 616.50 = 616.50 : x
  2. Step 2: Convert to fraction form
    349.88/616.50 = 616.50/x
  3. Step 3: Cross multiply
    349.88x = 616.50 × 616.50
  4. Step 4: Simplify right side
    349.88x = 380,072.25
  5. Step 5: Solve for x
    x = 380,072.25/349.88
  6. Step 6: Final answer
    x = 1,086.31

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Why These Related Problems?

These problems maintain the same ratio (1.76) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.