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Finding the Fourth Proportional to 183.95, 254.01 and 118.56

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Solution

The fourth proportional to 183.95, 254.01 and 118.56 is: 163.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.95 : 254.01 = 118.56 : x
  2. Step 2: Convert to fraction form
    183.95/254.01 = 118.56/x
  3. Step 3: Cross multiply
    183.95x = 254.01 × 118.56
  4. Step 4: Simplify right side
    183.95x = 30,116.06
  5. Step 5: Solve for x
    x = 30,116.06/183.95
  6. Step 6: Final answer
    x = 163.72

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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.