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Finding the Fourth Proportional to 183.25, 252.92 and 139.51

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Solution

The fourth proportional to 183.25, 252.92 and 139.51 is: 192.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.25 : 252.92 = 139.51 : x
  2. Step 2: Convert to fraction form
    183.25/252.92 = 139.51/x
  3. Step 3: Cross multiply
    183.25x = 252.92 × 139.51
  4. Step 4: Simplify right side
    183.25x = 35,284.87
  5. Step 5: Solve for x
    x = 35,284.87/183.25
  6. Step 6: Final answer
    x = 192.55

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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.