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Finding the Third Proportional to 140,493 and 215,433

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Solution

The third proportional to 140,493 and 215,433 is: 330,346.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,493 : 215,433 = 215,433 : x
  2. Step 2: Convert to fraction form
    140,493/215,433 = 215,433/x
  3. Step 3: Cross multiply
    140,493x = 215,433 × 215,433
  4. Step 4: Simplify right side
    140,493x = 46,411,377,489
  5. Step 5: Solve for x
    x = 46,411,377,489/140,493
  6. Step 6: Final answer
    x = 330,346.55

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.