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Finding the Fourth Proportional to 248.73, 375.09 and 247.11

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Solution

The fourth proportional to 248.73, 375.09 and 247.11 is: 372.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.73 : 375.09 = 247.11 : x
  2. Step 2: Convert to fraction form
    248.73/375.09 = 247.11/x
  3. Step 3: Cross multiply
    248.73x = 375.09 × 247.11
  4. Step 4: Simplify right side
    248.73x = 92,688.49
  5. Step 5: Solve for x
    x = 92,688.49/248.73
  6. Step 6: Final answer
    x = 372.65

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.