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Finding the Fourth Proportional to 247.84, 343.44 and 244.72

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Solution

The fourth proportional to 247.84, 343.44 and 244.72 is: 339.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.84 : 343.44 = 244.72 : x
  2. Step 2: Convert to fraction form
    247.84/343.44 = 244.72/x
  3. Step 3: Cross multiply
    247.84x = 343.44 × 244.72
  4. Step 4: Simplify right side
    247.84x = 84,046.64
  5. Step 5: Solve for x
    x = 84,046.64/247.84
  6. Step 6: Final answer
    x = 339.12

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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.