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Finding the Fourth Proportional to 325.69, 488.57 and 181.44

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Solution

The fourth proportional to 325.69, 488.57 and 181.44 is: 272.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.69 : 488.57 = 181.44 : x
  2. Step 2: Convert to fraction form
    325.69/488.57 = 181.44/x
  3. Step 3: Cross multiply
    325.69x = 488.57 × 181.44
  4. Step 4: Simplify right side
    325.69x = 88,645.23
  5. Step 5: Solve for x
    x = 88,645.23/325.69
  6. Step 6: Final answer
    x = 272.18

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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.