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Finding the Fourth Proportional to 163.44, 246.10 and 136.25

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Solution

The fourth proportional to 163.44, 246.10 and 136.25 is: 205.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.44 : 246.10 = 136.25 : x
  2. Step 2: Convert to fraction form
    163.44/246.10 = 136.25/x
  3. Step 3: Cross multiply
    163.44x = 246.10 × 136.25
  4. Step 4: Simplify right side
    163.44x = 33,531.40
  5. Step 5: Solve for x
    x = 33,531.40/163.44
  6. Step 6: Final answer
    x = 205.16

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.