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Finding the Third Proportional to 91,206 and 211,329

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Solution

The third proportional to 91,206 and 211,329 is: 489,660.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,206 : 211,329 = 211,329 : x
  2. Step 2: Convert to fraction form
    91,206/211,329 = 211,329/x
  3. Step 3: Cross multiply
    91,206x = 211,329 × 211,329
  4. Step 4: Simplify right side
    91,206x = 44,659,946,241
  5. Step 5: Solve for x
    x = 44,659,946,241/91,206
  6. Step 6: Final answer
    x = 489,660.18

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.