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Finding the Third Proportional to 128,992 and 194,244

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Solution

The third proportional to 128,992 and 194,244 is: 292,504.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,992 : 194,244 = 194,244 : x
  2. Step 2: Convert to fraction form
    128,992/194,244 = 194,244/x
  3. Step 3: Cross multiply
    128,992x = 194,244 × 194,244
  4. Step 4: Simplify right side
    128,992x = 37,730,731,536
  5. Step 5: Solve for x
    x = 37,730,731,536/128,992
  6. Step 6: Final answer
    x = 292,504.43

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.