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Finding the Third Proportional to 129,384 and 193,536

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Solution

The third proportional to 129,384 and 193,536 is: 289,496.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,384 : 193,536 = 193,536 : x
  2. Step 2: Convert to fraction form
    129,384/193,536 = 193,536/x
  3. Step 3: Cross multiply
    129,384x = 193,536 × 193,536
  4. Step 4: Simplify right side
    129,384x = 37,456,183,296
  5. Step 5: Solve for x
    x = 37,456,183,296/129,384
  6. Step 6: Final answer
    x = 289,496.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.