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Finding the Fourth Proportional to 183.22, 252.84 and 124.21

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Solution

The fourth proportional to 183.22, 252.84 and 124.21 is: 171.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.22 : 252.84 = 124.21 : x
  2. Step 2: Convert to fraction form
    183.22/252.84 = 124.21/x
  3. Step 3: Cross multiply
    183.22x = 252.84 × 124.21
  4. Step 4: Simplify right side
    183.22x = 31,405.26
  5. Step 5: Solve for x
    x = 31,405.26/183.22
  6. Step 6: Final answer
    x = 171.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.