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Finding the Third Proportional to 218 and 362

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Solution

The third proportional to 218 and 362 is: 601.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    218 : 362 = 362 : x
  2. Step 2: Convert to fraction form
    218/362 = 362/x
  3. Step 3: Cross multiply
    218x = 362 × 362
  4. Step 4: Simplify right side
    218x = 131,044
  5. Step 5: Solve for x
    x = 131,044/218
  6. Step 6: Final answer
    x = 601.12

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.