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Finding the Third Proportional to 129,540 and 281,832

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Solution

The third proportional to 129,540 and 281,832 is: 613,164.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,540 : 281,832 = 281,832 : x
  2. Step 2: Convert to fraction form
    129,540/281,832 = 281,832/x
  3. Step 3: Cross multiply
    129,540x = 281,832 × 281,832
  4. Step 4: Simplify right side
    129,540x = 79,429,276,224
  5. Step 5: Solve for x
    x = 79,429,276,224/129,540
  6. Step 6: Final answer
    x = 613,164.09

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.