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Finding the Fourth Proportional to 246.81, 367.89 and 231.15

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Solution

The fourth proportional to 246.81, 367.89 and 231.15 is: 344.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.81 : 367.89 = 231.15 : x
  2. Step 2: Convert to fraction form
    246.81/367.89 = 231.15/x
  3. Step 3: Cross multiply
    246.81x = 367.89 × 231.15
  4. Step 4: Simplify right side
    246.81x = 85,037.77
  5. Step 5: Solve for x
    x = 85,037.77/246.81
  6. Step 6: Final answer
    x = 344.55

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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.