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Finding the Fourth Proportional to 141.16, 211.41 and 136.29

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Solution

The fourth proportional to 141.16, 211.41 and 136.29 is: 204.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    141.16 : 211.41 = 136.29 : x
  2. Step 2: Convert to fraction form
    141.16/211.41 = 136.29/x
  3. Step 3: Cross multiply
    141.16x = 211.41 × 136.29
  4. Step 4: Simplify right side
    141.16x = 28,813.07
  5. Step 5: Solve for x
    x = 28,813.07/141.16
  6. Step 6: Final answer
    x = 204.12

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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.