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Finding the Fourth Proportional to 132.60, 197.51 and 131.16

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Solution

The fourth proportional to 132.60, 197.51 and 131.16 is: 195.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    132.60 : 197.51 = 131.16 : x
  2. Step 2: Convert to fraction form
    132.60/197.51 = 131.16/x
  3. Step 3: Cross multiply
    132.60x = 197.51 × 131.16
  4. Step 4: Simplify right side
    132.60x = 25,905.41
  5. Step 5: Solve for x
    x = 25,905.41/132.60
  6. Step 6: Final answer
    x = 195.37

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.