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Finding the Fourth Proportional to 246.22, 339.46 and 201.79

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Solution

The fourth proportional to 246.22, 339.46 and 201.79 is: 278.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.22 : 339.46 = 201.79 : x
  2. Step 2: Convert to fraction form
    246.22/339.46 = 201.79/x
  3. Step 3: Cross multiply
    246.22x = 339.46 × 201.79
  4. Step 4: Simplify right side
    246.22x = 68,501.64
  5. Step 5: Solve for x
    x = 68,501.64/246.22
  6. Step 6: Final answer
    x = 278.22

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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.