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Finding the Third Proportional to 16.51 and 36.18

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Solution

The third proportional to 16.51 and 36.18 is: 79.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.51 : 36.18 = 36.18 : x
  2. Step 2: Convert to fraction form
    16.51/36.18 = 36.18/x
  3. Step 3: Cross multiply
    16.51x = 36.18 × 36.18
  4. Step 4: Simplify right side
    16.51x = 1,308.69
  5. Step 5: Solve for x
    x = 1,308.69/16.51
  6. Step 6: Final answer
    x = 79.29

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.