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Finding the Third Proportional to 166.13 and 360.09

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Solution

The third proportional to 166.13 and 360.09 is: 780.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    166.13 : 360.09 = 360.09 : x
  2. Step 2: Convert to fraction form
    166.13/360.09 = 360.09/x
  3. Step 3: Cross multiply
    166.13x = 360.09 × 360.09
  4. Step 4: Simplify right side
    166.13x = 129,667.51
  5. Step 5: Solve for x
    x = 129,667.51/166.13
  6. Step 6: Final answer
    x = 780.54

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.