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Finding the Fourth Proportional to 382.16, 573.44 and 165.68

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Solution

The fourth proportional to 382.16, 573.44 and 165.68 is: 248.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    382.16 : 573.44 = 165.68 : x
  2. Step 2: Convert to fraction form
    382.16/573.44 = 165.68/x
  3. Step 3: Cross multiply
    382.16x = 573.44 × 165.68
  4. Step 4: Simplify right side
    382.16x = 95,007.54
  5. Step 5: Solve for x
    x = 95,007.54/382.16
  6. Step 6: Final answer
    x = 248.61

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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.