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Finding the Third Proportional to 217,782 and 326,673

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Solution

The third proportional to 217,782 and 326,673 is: 490,009.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,782 : 326,673 = 326,673 : x
  2. Step 2: Convert to fraction form
    217,782/326,673 = 326,673/x
  3. Step 3: Cross multiply
    217,782x = 326,673 × 326,673
  4. Step 4: Simplify right side
    217,782x = 106,715,248,929
  5. Step 5: Solve for x
    x = 106,715,248,929/217,782
  6. Step 6: Final answer
    x = 490,009.50

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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.