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Finding the Third Proportional to 36,389 and 79,186

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Solution

The third proportional to 36,389 and 79,186 is: 172,316.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,389 : 79,186 = 79,186 : x
  2. Step 2: Convert to fraction form
    36,389/79,186 = 79,186/x
  3. Step 3: Cross multiply
    36,389x = 79,186 × 79,186
  4. Step 4: Simplify right side
    36,389x = 6,270,422,596
  5. Step 5: Solve for x
    x = 6,270,422,596/36,389
  6. Step 6: Final answer
    x = 172,316.43

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.