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Finding the Fourth Proportional to 246.80, 368.02 and 238.88

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Solution

The fourth proportional to 246.80, 368.02 and 238.88 is: 356.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.80 : 368.02 = 238.88 : x
  2. Step 2: Convert to fraction form
    246.80/368.02 = 238.88/x
  3. Step 3: Cross multiply
    246.80x = 368.02 × 238.88
  4. Step 4: Simplify right side
    246.80x = 87,912.62
  5. Step 5: Solve for x
    x = 87,912.62/246.80
  6. Step 6: Final answer
    x = 356.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.