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Finding the Fourth Proportional to 182.56, 251.98 and 120.46

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Solution

The fourth proportional to 182.56, 251.98 and 120.46 is: 166.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    182.56 : 251.98 = 120.46 : x
  2. Step 2: Convert to fraction form
    182.56/251.98 = 120.46/x
  3. Step 3: Cross multiply
    182.56x = 251.98 × 120.46
  4. Step 4: Simplify right side
    182.56x = 30,353.51
  5. Step 5: Solve for x
    x = 30,353.51/182.56
  6. Step 6: Final answer
    x = 166.27

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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.