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Finding the Fourth Proportional to 240.09, 331.36 and 166.34

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Solution

The fourth proportional to 240.09, 331.36 and 166.34 is: 229.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.09 : 331.36 = 166.34 : x
  2. Step 2: Convert to fraction form
    240.09/331.36 = 166.34/x
  3. Step 3: Cross multiply
    240.09x = 331.36 × 166.34
  4. Step 4: Simplify right side
    240.09x = 55,118.83
  5. Step 5: Solve for x
    x = 55,118.83/240.09
  6. Step 6: Final answer
    x = 229.58

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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.