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Finding the Fourth Proportional to 197.21, 295.93 and 136.16

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Solution

The fourth proportional to 197.21, 295.93 and 136.16 is: 204.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.21 : 295.93 = 136.16 : x
  2. Step 2: Convert to fraction form
    197.21/295.93 = 136.16/x
  3. Step 3: Cross multiply
    197.21x = 295.93 × 136.16
  4. Step 4: Simplify right side
    197.21x = 40,292.41
  5. Step 5: Solve for x
    x = 40,292.41/197.21
  6. Step 6: Final answer
    x = 204.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.