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Finding the Fourth Proportional to 184.41, 276.12 and 143.42

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Solution

The fourth proportional to 184.41, 276.12 and 143.42 is: 214.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.41 : 276.12 = 143.42 : x
  2. Step 2: Convert to fraction form
    184.41/276.12 = 143.42/x
  3. Step 3: Cross multiply
    184.41x = 276.12 × 143.42
  4. Step 4: Simplify right side
    184.41x = 39,599.75
  5. Step 5: Solve for x
    x = 39,599.75/184.41
  6. Step 6: Final answer
    x = 214.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.