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Finding the Third Proportional to 199.34 and 263.88

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Solution

The third proportional to 199.34 and 263.88 is: 349.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    199.34 : 263.88 = 263.88 : x
  2. Step 2: Convert to fraction form
    199.34/263.88 = 263.88/x
  3. Step 3: Cross multiply
    199.34x = 263.88 × 263.88
  4. Step 4: Simplify right side
    199.34x = 69,634.14
  5. Step 5: Solve for x
    x = 69,634.14/199.34
  6. Step 6: Final answer
    x = 349.33

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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.