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Finding the Fourth Proportional to 240.95, 334.75 and 238.70

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Solution

The fourth proportional to 240.95, 334.75 and 238.70 is: 331.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.95 : 334.75 = 238.70 : x
  2. Step 2: Convert to fraction form
    240.95/334.75 = 238.70/x
  3. Step 3: Cross multiply
    240.95x = 334.75 × 238.70
  4. Step 4: Simplify right side
    240.95x = 79,903.63
  5. Step 5: Solve for x
    x = 79,903.63/240.95
  6. Step 6: Final answer
    x = 331.62

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.