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Finding the Third Proportional to 217.13 and 367.03

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Solution

The third proportional to 217.13 and 367.03 is: 620.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    217.13 : 367.03 = 367.03 : x
  2. Step 2: Convert to fraction form
    217.13/367.03 = 367.03/x
  3. Step 3: Cross multiply
    217.13x = 367.03 × 367.03
  4. Step 4: Simplify right side
    217.13x = 134,711.94
  5. Step 5: Solve for x
    x = 134,711.94/217.13
  6. Step 6: Final answer
    x = 620.43

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Why These Related Problems?

These problems maintain the same ratio (1.69) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.