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Finding the Third Proportional to 129,422 and 284,224

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Solution

The third proportional to 129,422 and 284,224 is: 624,185.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,422 : 284,224 = 284,224 : x
  2. Step 2: Convert to fraction form
    129,422/284,224 = 284,224/x
  3. Step 3: Cross multiply
    129,422x = 284,224 × 284,224
  4. Step 4: Simplify right side
    129,422x = 80,783,282,176
  5. Step 5: Solve for x
    x = 80,783,282,176/129,422
  6. Step 6: Final answer
    x = 624,185.09

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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.