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Finding the Third Proportional to 320,841 and 367,497

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Solution

The third proportional to 320,841 and 367,497 is: 420,937.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,841 : 367,497 = 367,497 : x
  2. Step 2: Convert to fraction form
    320,841/367,497 = 367,497/x
  3. Step 3: Cross multiply
    320,841x = 367,497 × 367,497
  4. Step 4: Simplify right side
    320,841x = 135,054,045,009
  5. Step 5: Solve for x
    x = 135,054,045,009/320,841
  6. Step 6: Final answer
    x = 420,937.61

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.