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Finding the Fourth Proportional to 182.40, 272.82 and 141.72

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Solution

The fourth proportional to 182.40, 272.82 and 141.72 is: 211.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    182.40 : 272.82 = 141.72 : x
  2. Step 2: Convert to fraction form
    182.40/272.82 = 141.72/x
  3. Step 3: Cross multiply
    182.40x = 272.82 × 141.72
  4. Step 4: Simplify right side
    182.40x = 38,664.05
  5. Step 5: Solve for x
    x = 38,664.05/182.40
  6. Step 6: Final answer
    x = 211.97

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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.