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Finding the Fourth Proportional to 286.13, 427.47 and 182.54

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Solution

The fourth proportional to 286.13, 427.47 and 182.54 is: 272.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    286.13 : 427.47 = 182.54 : x
  2. Step 2: Convert to fraction form
    286.13/427.47 = 182.54/x
  3. Step 3: Cross multiply
    286.13x = 427.47 × 182.54
  4. Step 4: Simplify right side
    286.13x = 78,030.37
  5. Step 5: Solve for x
    x = 78,030.37/286.13
  6. Step 6: Final answer
    x = 272.71

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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.