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Finding the Fourth Proportional to 191.18, 264.12 and 133.16

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Solution

The fourth proportional to 191.18, 264.12 and 133.16 is: 183.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    191.18 : 264.12 = 133.16 : x
  2. Step 2: Convert to fraction form
    191.18/264.12 = 133.16/x
  3. Step 3: Cross multiply
    191.18x = 264.12 × 133.16
  4. Step 4: Simplify right side
    191.18x = 35,170.22
  5. Step 5: Solve for x
    x = 35,170.22/191.18
  6. Step 6: Final answer
    x = 183.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.