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Finding the Third Proportional to 190,128 and 267,456

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Solution

The third proportional to 190,128 and 267,456 is: 376,234.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,128 : 267,456 = 267,456 : x
  2. Step 2: Convert to fraction form
    190,128/267,456 = 267,456/x
  3. Step 3: Cross multiply
    190,128x = 267,456 × 267,456
  4. Step 4: Simplify right side
    190,128x = 71,532,711,936
  5. Step 5: Solve for x
    x = 71,532,711,936/190,128
  6. Step 6: Final answer
    x = 376,234.49

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.