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Finding the Third Proportional to 134.91 and 207.14

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Solution

The third proportional to 134.91 and 207.14 is: 318.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.91 : 207.14 = 207.14 : x
  2. Step 2: Convert to fraction form
    134.91/207.14 = 207.14/x
  3. Step 3: Cross multiply
    134.91x = 207.14 × 207.14
  4. Step 4: Simplify right side
    134.91x = 42,907.24
  5. Step 5: Solve for x
    x = 42,907.24/134.91
  6. Step 6: Final answer
    x = 318.05

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.