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Finding the Third Proportional to 36,407 and 79,402

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Solution

The third proportional to 36,407 and 79,402 is: 173,172.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,407 : 79,402 = 79,402 : x
  2. Step 2: Convert to fraction form
    36,407/79,402 = 79,402/x
  3. Step 3: Cross multiply
    36,407x = 79,402 × 79,402
  4. Step 4: Simplify right side
    36,407x = 6,304,677,604
  5. Step 5: Solve for x
    x = 6,304,677,604/36,407
  6. Step 6: Final answer
    x = 173,172.13

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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.