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Finding the Third Proportional to 97,857 and 212,718

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Solution

The third proportional to 97,857 and 212,718 is: 462,398.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,857 : 212,718 = 212,718 : x
  2. Step 2: Convert to fraction form
    97,857/212,718 = 212,718/x
  3. Step 3: Cross multiply
    97,857x = 212,718 × 212,718
  4. Step 4: Simplify right side
    97,857x = 45,248,947,524
  5. Step 5: Solve for x
    x = 45,248,947,524/97,857
  6. Step 6: Final answer
    x = 462,398.68

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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.