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Finding the Third Proportional to 77,286 and 164,697

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Solution

The third proportional to 77,286 and 164,697 is: 350,970.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,286 : 164,697 = 164,697 : x
  2. Step 2: Convert to fraction form
    77,286/164,697 = 164,697/x
  3. Step 3: Cross multiply
    77,286x = 164,697 × 164,697
  4. Step 4: Simplify right side
    77,286x = 27,125,101,809
  5. Step 5: Solve for x
    x = 27,125,101,809/77,286
  6. Step 6: Final answer
    x = 350,970.44

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.