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Finding the Fourth Proportional to 141.26, 210.87 and 131.99

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Solution

The fourth proportional to 141.26, 210.87 and 131.99 is: 197.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    141.26 : 210.87 = 131.99 : x
  2. Step 2: Convert to fraction form
    141.26/210.87 = 131.99/x
  3. Step 3: Cross multiply
    141.26x = 210.87 × 131.99
  4. Step 4: Simplify right side
    141.26x = 27,832.73
  5. Step 5: Solve for x
    x = 27,832.73/141.26
  6. Step 6: Final answer
    x = 197.03

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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.