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Finding the Third Proportional to 133.88 and 207.14

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Solution

The third proportional to 133.88 and 207.14 is: 320.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    133.88 : 207.14 = 207.14 : x
  2. Step 2: Convert to fraction form
    133.88/207.14 = 207.14/x
  3. Step 3: Cross multiply
    133.88x = 207.14 × 207.14
  4. Step 4: Simplify right side
    133.88x = 42,907.24
  5. Step 5: Solve for x
    x = 42,907.24/133.88
  6. Step 6: Final answer
    x = 320.50

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.