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Finding the Third Proportional to 120,904 and 169,958

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Solution

The third proportional to 120,904 and 169,958 is: 238,914.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,904 : 169,958 = 169,958 : x
  2. Step 2: Convert to fraction form
    120,904/169,958 = 169,958/x
  3. Step 3: Cross multiply
    120,904x = 169,958 × 169,958
  4. Step 4: Simplify right side
    120,904x = 28,885,721,764
  5. Step 5: Solve for x
    x = 28,885,721,764/120,904
  6. Step 6: Final answer
    x = 238,914.53

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.