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Finding the Fourth Proportional to 181.27, 272.18 and 104.32

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Solution

The fourth proportional to 181.27, 272.18 and 104.32 is: 156.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.27 : 272.18 = 104.32 : x
  2. Step 2: Convert to fraction form
    181.27/272.18 = 104.32/x
  3. Step 3: Cross multiply
    181.27x = 272.18 × 104.32
  4. Step 4: Simplify right side
    181.27x = 28,393.82
  5. Step 5: Solve for x
    x = 28,393.82/181.27
  6. Step 6: Final answer
    x = 156.64

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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.