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Finding the Third Proportional to 203,619 and 434,282

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Solution

The third proportional to 203,619 and 434,282 is: 926,243.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,619 : 434,282 = 434,282 : x
  2. Step 2: Convert to fraction form
    203,619/434,282 = 434,282/x
  3. Step 3: Cross multiply
    203,619x = 434,282 × 434,282
  4. Step 4: Simplify right side
    203,619x = 188,600,855,524
  5. Step 5: Solve for x
    x = 188,600,855,524/203,619
  6. Step 6: Final answer
    x = 926,243.89

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.