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Finding the Third Proportional to 187,281 and 412,738

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Solution

The third proportional to 187,281 and 412,738 is: 909,609.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,281 : 412,738 = 412,738 : x
  2. Step 2: Convert to fraction form
    187,281/412,738 = 412,738/x
  3. Step 3: Cross multiply
    187,281x = 412,738 × 412,738
  4. Step 4: Simplify right side
    187,281x = 170,352,656,644
  5. Step 5: Solve for x
    x = 170,352,656,644/187,281
  6. Step 6: Final answer
    x = 909,609.93

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.