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Finding the Fourth Proportional to 246.53, 339.90 and 194.15

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Solution

The fourth proportional to 246.53, 339.90 and 194.15 is: 267.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.53 : 339.90 = 194.15 : x
  2. Step 2: Convert to fraction form
    246.53/339.90 = 194.15/x
  3. Step 3: Cross multiply
    246.53x = 339.90 × 194.15
  4. Step 4: Simplify right side
    246.53x = 65,991.59
  5. Step 5: Solve for x
    x = 65,991.59/246.53
  6. Step 6: Final answer
    x = 267.68

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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.