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Finding the Fourth Proportional to 246.86, 369.95 and 131.39

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Solution

The fourth proportional to 246.86, 369.95 and 131.39 is: 196.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.86 : 369.95 = 131.39 : x
  2. Step 2: Convert to fraction form
    246.86/369.95 = 131.39/x
  3. Step 3: Cross multiply
    246.86x = 369.95 × 131.39
  4. Step 4: Simplify right side
    246.86x = 48,606.21
  5. Step 5: Solve for x
    x = 48,606.21/246.86
  6. Step 6: Final answer
    x = 196.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.