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Finding the Third Proportional to 129,239 and 188,846

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Solution

The third proportional to 129,239 and 188,846 is: 275,944.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,239 : 188,846 = 188,846 : x
  2. Step 2: Convert to fraction form
    129,239/188,846 = 188,846/x
  3. Step 3: Cross multiply
    129,239x = 188,846 × 188,846
  4. Step 4: Simplify right side
    129,239x = 35,662,811,716
  5. Step 5: Solve for x
    x = 35,662,811,716/129,239
  6. Step 6: Final answer
    x = 275,944.66

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.