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Finding the Fourth Proportional to 248.88, 343.46 and 150.66

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Solution

The fourth proportional to 248.88, 343.46 and 150.66 is: 207.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.88 : 343.46 = 150.66 : x
  2. Step 2: Convert to fraction form
    248.88/343.46 = 150.66/x
  3. Step 3: Cross multiply
    248.88x = 343.46 × 150.66
  4. Step 4: Simplify right side
    248.88x = 51,745.68
  5. Step 5: Solve for x
    x = 51,745.68/248.88
  6. Step 6: Final answer
    x = 207.91

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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.