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Finding the Third Proportional to 206,184 and 319,254

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Solution

The third proportional to 206,184 and 319,254 is: 494,330.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,184 : 319,254 = 319,254 : x
  2. Step 2: Convert to fraction form
    206,184/319,254 = 319,254/x
  3. Step 3: Cross multiply
    206,184x = 319,254 × 319,254
  4. Step 4: Simplify right side
    206,184x = 101,923,116,516
  5. Step 5: Solve for x
    x = 101,923,116,516/206,184
  6. Step 6: Final answer
    x = 494,330.87

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.