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Finding the Third Proportional to 203,215 and 442,634

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Solution

The third proportional to 203,215 and 442,634 is: 964,125.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,215 : 442,634 = 442,634 : x
  2. Step 2: Convert to fraction form
    203,215/442,634 = 442,634/x
  3. Step 3: Cross multiply
    203,215x = 442,634 × 442,634
  4. Step 4: Simplify right side
    203,215x = 195,924,857,956
  5. Step 5: Solve for x
    x = 195,924,857,956/203,215
  6. Step 6: Final answer
    x = 964,125.96

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.