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Finding the Fourth Proportional to 141.44, 211.97 and 98.03

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Solution

The fourth proportional to 141.44, 211.97 and 98.03 is: 146.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    141.44 : 211.97 = 98.03 : x
  2. Step 2: Convert to fraction form
    141.44/211.97 = 98.03/x
  3. Step 3: Cross multiply
    141.44x = 211.97 × 98.03
  4. Step 4: Simplify right side
    141.44x = 20,779.42
  5. Step 5: Solve for x
    x = 20,779.42/141.44
  6. Step 6: Final answer
    x = 146.91

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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.