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Finding the Fourth Proportional to 248.07, 371.31 and 132.35

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Solution

The fourth proportional to 248.07, 371.31 and 132.35 is: 198.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.07 : 371.31 = 132.35 : x
  2. Step 2: Convert to fraction form
    248.07/371.31 = 132.35/x
  3. Step 3: Cross multiply
    248.07x = 371.31 × 132.35
  4. Step 4: Simplify right side
    248.07x = 49,142.88
  5. Step 5: Solve for x
    x = 49,142.88/248.07
  6. Step 6: Final answer
    x = 198.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.