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Finding the Fourth Proportional to 146.42, 220.44 and 133.67

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Solution

The fourth proportional to 146.42, 220.44 and 133.67 is: 201.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    146.42 : 220.44 = 133.67 : x
  2. Step 2: Convert to fraction form
    146.42/220.44 = 133.67/x
  3. Step 3: Cross multiply
    146.42x = 220.44 × 133.67
  4. Step 4: Simplify right side
    146.42x = 29,465.11
  5. Step 5: Solve for x
    x = 29,465.11/146.42
  6. Step 6: Final answer
    x = 201.23

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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.