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Finding the Third Proportional to 250,328 and 387,376

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Solution

The third proportional to 250,328 and 387,376 is: 599,454.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,328 : 387,376 = 387,376 : x
  2. Step 2: Convert to fraction form
    250,328/387,376 = 387,376/x
  3. Step 3: Cross multiply
    250,328x = 387,376 × 387,376
  4. Step 4: Simplify right side
    250,328x = 150,060,165,376
  5. Step 5: Solve for x
    x = 150,060,165,376/250,328
  6. Step 6: Final answer
    x = 599,454.18

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