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Finding the Third Proportional to 277,328 and 396,304

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Solution

The third proportional to 277,328 and 396,304 is: 566,321.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,328 : 396,304 = 396,304 : x
  2. Step 2: Convert to fraction form
    277,328/396,304 = 396,304/x
  3. Step 3: Cross multiply
    277,328x = 396,304 × 396,304
  4. Step 4: Simplify right side
    277,328x = 157,056,860,416
  5. Step 5: Solve for x
    x = 157,056,860,416/277,328
  6. Step 6: Final answer
    x = 566,321.69

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.