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Finding the Third Proportional to 180,856 and 392,846

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Solution

The third proportional to 180,856 and 392,846 is: 853,319.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,856 : 392,846 = 392,846 : x
  2. Step 2: Convert to fraction form
    180,856/392,846 = 392,846/x
  3. Step 3: Cross multiply
    180,856x = 392,846 × 392,846
  4. Step 4: Simplify right side
    180,856x = 154,327,979,716
  5. Step 5: Solve for x
    x = 154,327,979,716/180,856
  6. Step 6: Final answer
    x = 853,319.66

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.