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Finding the Third Proportional to 211,208 and 437,384

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Solution

The third proportional to 211,208 and 437,384 is: 905,764.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,208 : 437,384 = 437,384 : x
  2. Step 2: Convert to fraction form
    211,208/437,384 = 437,384/x
  3. Step 3: Cross multiply
    211,208x = 437,384 × 437,384
  4. Step 4: Simplify right side
    211,208x = 191,304,763,456
  5. Step 5: Solve for x
    x = 191,304,763,456/211,208
  6. Step 6: Final answer
    x = 905,764.76

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.