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Finding the Third Proportional to 217,775.25 and 329,943

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Solution

The third proportional to 217,775.25 and 329,943 is: 499,884.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,775.25 : 329,943 = 329,943 : x
  2. Step 2: Convert to fraction form
    217,775.25/329,943 = 329,943/x
  3. Step 3: Cross multiply
    217,775.25x = 329,943 × 329,943
  4. Step 4: Simplify right side
    217,775.25x = 108,862,383,249
  5. Step 5: Solve for x
    x = 108,862,383,249/217,775.25
  6. Step 6: Final answer
    x = 499,884.09

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.