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Finding the Fourth Proportional to 246.20, 339.62 and 163.32

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Solution

The fourth proportional to 246.20, 339.62 and 163.32 is: 225.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.20 : 339.62 = 163.32 : x
  2. Step 2: Convert to fraction form
    246.20/339.62 = 163.32/x
  3. Step 3: Cross multiply
    246.20x = 339.62 × 163.32
  4. Step 4: Simplify right side
    246.20x = 55,466.74
  5. Step 5: Solve for x
    x = 55,466.74/246.20
  6. Step 6: Final answer
    x = 225.29

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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.