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Finding the Third Proportional to 203,285 and 445,828

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Solution

The third proportional to 203,285 and 445,828 is: 977,753.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,285 : 445,828 = 445,828 : x
  2. Step 2: Convert to fraction form
    203,285/445,828 = 445,828/x
  3. Step 3: Cross multiply
    203,285x = 445,828 × 445,828
  4. Step 4: Simplify right side
    203,285x = 198,762,605,584
  5. Step 5: Solve for x
    x = 198,762,605,584/203,285
  6. Step 6: Final answer
    x = 977,753.43

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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.