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Finding the Fourth Proportional to 188.48, 281.28 and 182.81

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Solution

The fourth proportional to 188.48, 281.28 and 182.81 is: 272.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    188.48 : 281.28 = 182.81 : x
  2. Step 2: Convert to fraction form
    188.48/281.28 = 182.81/x
  3. Step 3: Cross multiply
    188.48x = 281.28 × 182.81
  4. Step 4: Simplify right side
    188.48x = 51,419.39
  5. Step 5: Solve for x
    x = 51,419.39/188.48
  6. Step 6: Final answer
    x = 272.82

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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.