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Finding the Third Proportional to 51 and 133.88

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Solution

The third proportional to 51 and 133.88 is: 351.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    51 : 133.88 = 133.88 : x
  2. Step 2: Convert to fraction form
    51/133.88 = 133.88/x
  3. Step 3: Cross multiply
    51x = 133.88 × 133.88
  4. Step 4: Simplify right side
    51x = 17,922.52
  5. Step 5: Solve for x
    x = 17,922.52/51
  6. Step 6: Final answer
    x = 351.42

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Why These Related Problems?

These problems maintain the same ratio (2.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.