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Finding the Fourth Proportional to 251.33, 348.32 and 247.49

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Solution

The fourth proportional to 251.33, 348.32 and 247.49 is: 342.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.33 : 348.32 = 247.49 : x
  2. Step 2: Convert to fraction form
    251.33/348.32 = 247.49/x
  3. Step 3: Cross multiply
    251.33x = 348.32 × 247.49
  4. Step 4: Simplify right side
    251.33x = 86,202.74
  5. Step 5: Solve for x
    x = 86,202.74/251.33
  6. Step 6: Final answer
    x = 342.99

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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.