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Finding the Third Proportional to 211,488 and 323,934

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Solution

The third proportional to 211,488 and 323,934 is: 496,166.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,488 : 323,934 = 323,934 : x
  2. Step 2: Convert to fraction form
    211,488/323,934 = 323,934/x
  3. Step 3: Cross multiply
    211,488x = 323,934 × 323,934
  4. Step 4: Simplify right side
    211,488x = 104,933,236,356
  5. Step 5: Solve for x
    x = 104,933,236,356/211,488
  6. Step 6: Final answer
    x = 496,166.38

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.