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Finding the Third Proportional to 189,380 and 414,394

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Solution

The third proportional to 189,380 and 414,394 is: 906,760.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,380 : 414,394 = 414,394 : x
  2. Step 2: Convert to fraction form
    189,380/414,394 = 414,394/x
  3. Step 3: Cross multiply
    189,380x = 414,394 × 414,394
  4. Step 4: Simplify right side
    189,380x = 171,722,387,236
  5. Step 5: Solve for x
    x = 171,722,387,236/189,380
  6. Step 6: Final answer
    x = 906,760.94

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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.