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Finding the Third Proportional to 194,640 and 418,384

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Solution

The third proportional to 194,640 and 418,384 is: 899,327.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,640 : 418,384 = 418,384 : x
  2. Step 2: Convert to fraction form
    194,640/418,384 = 418,384/x
  3. Step 3: Cross multiply
    194,640x = 418,384 × 418,384
  4. Step 4: Simplify right side
    194,640x = 175,045,171,456
  5. Step 5: Solve for x
    x = 175,045,171,456/194,640
  6. Step 6: Final answer
    x = 899,327.84

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.