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Finding the Third Proportional to 217,552 and 306,368

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Solution

The third proportional to 217,552 and 306,368 is: 431,443.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,552 : 306,368 = 306,368 : x
  2. Step 2: Convert to fraction form
    217,552/306,368 = 306,368/x
  3. Step 3: Cross multiply
    217,552x = 306,368 × 306,368
  4. Step 4: Simplify right side
    217,552x = 93,861,351,424
  5. Step 5: Solve for x
    x = 93,861,351,424/217,552
  6. Step 6: Final answer
    x = 431,443.29

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.