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Finding the Fourth Proportional to 246.48, 339.78 and 193.92

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Solution

The fourth proportional to 246.48, 339.78 and 193.92 is: 267.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.48 : 339.78 = 193.92 : x
  2. Step 2: Convert to fraction form
    246.48/339.78 = 193.92/x
  3. Step 3: Cross multiply
    246.48x = 339.78 × 193.92
  4. Step 4: Simplify right side
    246.48x = 65,889.23
  5. Step 5: Solve for x
    x = 65,889.23/246.48
  6. Step 6: Final answer
    x = 267.33

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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.