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Finding the Third Proportional to 99,866 and 212,044

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Solution

The third proportional to 99,866 and 212,044 is: 450,229.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,866 : 212,044 = 212,044 : x
  2. Step 2: Convert to fraction form
    99,866/212,044 = 212,044/x
  3. Step 3: Cross multiply
    99,866x = 212,044 × 212,044
  4. Step 4: Simplify right side
    99,866x = 44,962,657,936
  5. Step 5: Solve for x
    x = 44,962,657,936/99,866
  6. Step 6: Final answer
    x = 450,229.89

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.