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Finding the Third Proportional to 99,610 and 217,844

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Solution

The third proportional to 99,610 and 217,844 is: 476,418.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,610 : 217,844 = 217,844 : x
  2. Step 2: Convert to fraction form
    99,610/217,844 = 217,844/x
  3. Step 3: Cross multiply
    99,610x = 217,844 × 217,844
  4. Step 4: Simplify right side
    99,610x = 47,456,008,336
  5. Step 5: Solve for x
    x = 47,456,008,336/99,610
  6. Step 6: Final answer
    x = 476,418.11

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.