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Finding the Fourth Proportional to 182.22, 272.91 and 143.43

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Solution

The fourth proportional to 182.22, 272.91 and 143.43 is: 214.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    182.22 : 272.91 = 143.43 : x
  2. Step 2: Convert to fraction form
    182.22/272.91 = 143.43/x
  3. Step 3: Cross multiply
    182.22x = 272.91 × 143.43
  4. Step 4: Simplify right side
    182.22x = 39,143.48
  5. Step 5: Solve for x
    x = 39,143.48/182.22
  6. Step 6: Final answer
    x = 214.81

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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.