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Finding the Third Proportional to 246,380 and 343,270

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Solution

The third proportional to 246,380 and 343,270 is: 478,262.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,380 : 343,270 = 343,270 : x
  2. Step 2: Convert to fraction form
    246,380/343,270 = 343,270/x
  3. Step 3: Cross multiply
    246,380x = 343,270 × 343,270
  4. Step 4: Simplify right side
    246,380x = 117,834,292,900
  5. Step 5: Solve for x
    x = 117,834,292,900/246,380
  6. Step 6: Final answer
    x = 478,262.41

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.