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Finding the Fourth Proportional to 184.78, 255.02 and 119.34

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Solution

The fourth proportional to 184.78, 255.02 and 119.34 is: 164.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.78 : 255.02 = 119.34 : x
  2. Step 2: Convert to fraction form
    184.78/255.02 = 119.34/x
  3. Step 3: Cross multiply
    184.78x = 255.02 × 119.34
  4. Step 4: Simplify right side
    184.78x = 30,433.49
  5. Step 5: Solve for x
    x = 30,433.49/184.78
  6. Step 6: Final answer
    x = 164.70

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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.