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Finding the Fourth Proportional to 240.12, 330.75 and 170.05

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Solution

The fourth proportional to 240.12, 330.75 and 170.05 is: 234.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.12 : 330.75 = 170.05 : x
  2. Step 2: Convert to fraction form
    240.12/330.75 = 170.05/x
  3. Step 3: Cross multiply
    240.12x = 330.75 × 170.05
  4. Step 4: Simplify right side
    240.12x = 56,244.04
  5. Step 5: Solve for x
    x = 56,244.04/240.12
  6. Step 6: Final answer
    x = 234.23

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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.