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Finding the Fourth Proportional to 248.41, 341.70 and 238.42

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Solution

The fourth proportional to 248.41, 341.70 and 238.42 is: 327.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.41 : 341.70 = 238.42 : x
  2. Step 2: Convert to fraction form
    248.41/341.70 = 238.42/x
  3. Step 3: Cross multiply
    248.41x = 341.70 × 238.42
  4. Step 4: Simplify right side
    248.41x = 81,468.11
  5. Step 5: Solve for x
    x = 81,468.11/248.41
  6. Step 6: Final answer
    x = 327.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.