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Finding the Third Proportional to 109 and 236

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Solution

The third proportional to 109 and 236 is: 510.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    109 : 236 = 236 : x
  2. Step 2: Convert to fraction form
    109/236 = 236/x
  3. Step 3: Cross multiply
    109x = 236 × 236
  4. Step 4: Simplify right side
    109x = 55,696
  5. Step 5: Solve for x
    x = 55,696/109
  6. Step 6: Final answer
    x = 510.97

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.