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Finding the Third Proportional to 219,692 and 328,782

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Solution

The third proportional to 219,692 and 328,782 is: 492,041.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,692 : 328,782 = 328,782 : x
  2. Step 2: Convert to fraction form
    219,692/328,782 = 328,782/x
  3. Step 3: Cross multiply
    219,692x = 328,782 × 328,782
  4. Step 4: Simplify right side
    219,692x = 108,097,603,524
  5. Step 5: Solve for x
    x = 108,097,603,524/219,692
  6. Step 6: Final answer
    x = 492,041.60

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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.