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Finding the Fourth Proportional to 246.17, 339.90 and 163.38

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Solution

The fourth proportional to 246.17, 339.90 and 163.38 is: 225.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.17 : 339.90 = 163.38 : x
  2. Step 2: Convert to fraction form
    246.17/339.90 = 163.38/x
  3. Step 3: Cross multiply
    246.17x = 339.90 × 163.38
  4. Step 4: Simplify right side
    246.17x = 55,533.52
  5. Step 5: Solve for x
    x = 55,533.52/246.17
  6. Step 6: Final answer
    x = 225.59

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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.