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Finding the Third Proportional to 141,648 and 212,802

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Solution

The third proportional to 141,648 and 212,802 is: 319,698.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,648 : 212,802 = 212,802 : x
  2. Step 2: Convert to fraction form
    141,648/212,802 = 212,802/x
  3. Step 3: Cross multiply
    141,648x = 212,802 × 212,802
  4. Step 4: Simplify right side
    141,648x = 45,284,691,204
  5. Step 5: Solve for x
    x = 45,284,691,204/141,648
  6. Step 6: Final answer
    x = 319,698.77

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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.