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Finding the Third Proportional to 248 and 344.50

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Solution

The third proportional to 248 and 344.50 is: 478.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    248 : 344.50 = 344.50 : x
  2. Step 2: Convert to fraction form
    248/344.50 = 344.50/x
  3. Step 3: Cross multiply
    248x = 344.50 × 344.50
  4. Step 4: Simplify right side
    248x = 118,680.25
  5. Step 5: Solve for x
    x = 118,680.25/248
  6. Step 6: Final answer
    x = 478.55

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.