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Finding the Fourth Proportional to 181.97, 272.48 and 100.72

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Solution

The fourth proportional to 181.97, 272.48 and 100.72 is: 150.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.97 : 272.48 = 100.72 : x
  2. Step 2: Convert to fraction form
    181.97/272.48 = 100.72/x
  3. Step 3: Cross multiply
    181.97x = 272.48 × 100.72
  4. Step 4: Simplify right side
    181.97x = 27,444.19
  5. Step 5: Solve for x
    x = 27,444.19/181.97
  6. Step 6: Final answer
    x = 150.82

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.