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Finding the Fourth Proportional to 182.68, 252.12 and 139.12

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Solution

The fourth proportional to 182.68, 252.12 and 139.12 is: 192.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    182.68 : 252.12 = 139.12 : x
  2. Step 2: Convert to fraction form
    182.68/252.12 = 139.12/x
  3. Step 3: Cross multiply
    182.68x = 252.12 × 139.12
  4. Step 4: Simplify right side
    182.68x = 35,074.93
  5. Step 5: Solve for x
    x = 35,074.93/182.68
  6. Step 6: Final answer
    x = 192.00

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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.