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Finding the Third Proportional to 105,576 and 219,890

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Solution

The third proportional to 105,576 and 219,890 is: 457,979.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,576 : 219,890 = 219,890 : x
  2. Step 2: Convert to fraction form
    105,576/219,890 = 219,890/x
  3. Step 3: Cross multiply
    105,576x = 219,890 × 219,890
  4. Step 4: Simplify right side
    105,576x = 48,351,612,100
  5. Step 5: Solve for x
    x = 48,351,612,100/105,576
  6. Step 6: Final answer
    x = 457,979.20

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.