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Finding the Third Proportional to 219,492 and 327,942

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Solution

The third proportional to 219,492 and 327,942 is: 489,976.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,492 : 327,942 = 327,942 : x
  2. Step 2: Convert to fraction form
    219,492/327,942 = 327,942/x
  3. Step 3: Cross multiply
    219,492x = 327,942 × 327,942
  4. Step 4: Simplify right side
    219,492x = 107,545,955,364
  5. Step 5: Solve for x
    x = 107,545,955,364/219,492
  6. Step 6: Final answer
    x = 489,976.65

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.