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Finding the Fourth Proportional to 182.03, 272.69 and 138.20

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Solution

The fourth proportional to 182.03, 272.69 and 138.20 is: 207.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    182.03 : 272.69 = 138.20 : x
  2. Step 2: Convert to fraction form
    182.03/272.69 = 138.20/x
  3. Step 3: Cross multiply
    182.03x = 272.69 × 138.20
  4. Step 4: Simplify right side
    182.03x = 37,683.70
  5. Step 5: Solve for x
    x = 37,683.70/182.03
  6. Step 6: Final answer
    x = 207.02

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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.