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Finding the Fourth Proportional to 248.19, 371.54 and 161.36

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Solution

The fourth proportional to 248.19, 371.54 and 161.36 is: 241.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.19 : 371.54 = 161.36 : x
  2. Step 2: Convert to fraction form
    248.19/371.54 = 161.36/x
  3. Step 3: Cross multiply
    248.19x = 371.54 × 161.36
  4. Step 4: Simplify right side
    248.19x = 59,949.03
  5. Step 5: Solve for x
    x = 59,949.03/248.19
  6. Step 6: Final answer
    x = 241.54

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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.