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Finding the Fourth Proportional to 184.88, 254.94 and 143.48

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Solution

The fourth proportional to 184.88, 254.94 and 143.48 is: 197.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.88 : 254.94 = 143.48 : x
  2. Step 2: Convert to fraction form
    184.88/254.94 = 143.48/x
  3. Step 3: Cross multiply
    184.88x = 254.94 × 143.48
  4. Step 4: Simplify right side
    184.88x = 36,578.79
  5. Step 5: Solve for x
    x = 36,578.79/184.88
  6. Step 6: Final answer
    x = 197.85

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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.