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Finding the Fourth Proportional to 246.26, 339.88 and 142.76

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Solution

The fourth proportional to 246.26, 339.88 and 142.76 is: 197.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.26 : 339.88 = 142.76 : x
  2. Step 2: Convert to fraction form
    246.26/339.88 = 142.76/x
  3. Step 3: Cross multiply
    246.26x = 339.88 × 142.76
  4. Step 4: Simplify right side
    246.26x = 48,521.27
  5. Step 5: Solve for x
    x = 48,521.27/246.26
  6. Step 6: Final answer
    x = 197.03

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.