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Finding the Fourth Proportional to 185.74, 254.46 and 178.81

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Solution

The fourth proportional to 185.74, 254.46 and 178.81 is: 244.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    185.74 : 254.46 = 178.81 : x
  2. Step 2: Convert to fraction form
    185.74/254.46 = 178.81/x
  3. Step 3: Cross multiply
    185.74x = 254.46 × 178.81
  4. Step 4: Simplify right side
    185.74x = 45,499.99
  5. Step 5: Solve for x
    x = 45,499.99/185.74
  6. Step 6: Final answer
    x = 244.97

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.