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Finding the Third Proportional to 187,172 and 409,336

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Solution

The third proportional to 187,172 and 409,336 is: 895,197.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,172 : 409,336 = 409,336 : x
  2. Step 2: Convert to fraction form
    187,172/409,336 = 409,336/x
  3. Step 3: Cross multiply
    187,172x = 409,336 × 409,336
  4. Step 4: Simplify right side
    187,172x = 167,555,960,896
  5. Step 5: Solve for x
    x = 167,555,960,896/187,172
  6. Step 6: Final answer
    x = 895,197.79

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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.