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Finding the Third Proportional to 838.50 and 1,119

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Solution

The third proportional to 838.50 and 1,119 is: 1,493.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    838.50 : 1,119 = 1,119 : x
  2. Step 2: Convert to fraction form
    838.50/1,119 = 1,119/x
  3. Step 3: Cross multiply
    838.50x = 1,119 × 1,119
  4. Step 4: Simplify right side
    838.50x = 1,252,161
  5. Step 5: Solve for x
    x = 1,252,161/838.50
  6. Step 6: Final answer
    x = 1,493.33

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.