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Finding the Fourth Proportional to 201.59, 302.16 and 133.16

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Solution

The fourth proportional to 201.59, 302.16 and 133.16 is: 199.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    201.59 : 302.16 = 133.16 : x
  2. Step 2: Convert to fraction form
    201.59/302.16 = 133.16/x
  3. Step 3: Cross multiply
    201.59x = 302.16 × 133.16
  4. Step 4: Simplify right side
    201.59x = 40,234.11
  5. Step 5: Solve for x
    x = 40,234.11/201.59
  6. Step 6: Final answer
    x = 199.59

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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.