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Finding the Third Proportional to 117.88 and 274.44

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Solution

The third proportional to 117.88 and 274.44 is: 638.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    117.88 : 274.44 = 274.44 : x
  2. Step 2: Convert to fraction form
    117.88/274.44 = 274.44/x
  3. Step 3: Cross multiply
    117.88x = 274.44 × 274.44
  4. Step 4: Simplify right side
    117.88x = 75,315.94
  5. Step 5: Solve for x
    x = 75,315.94/117.88
  6. Step 6: Final answer
    x = 638.95

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Why These Related Problems?

These problems maintain the same ratio (2.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.