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Finding the Fourth Proportional to 184.21, 254.04 and 144.79

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Solution

The fourth proportional to 184.21, 254.04 and 144.79 is: 199.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.21 : 254.04 = 144.79 : x
  2. Step 2: Convert to fraction form
    184.21/254.04 = 144.79/x
  3. Step 3: Cross multiply
    184.21x = 254.04 × 144.79
  4. Step 4: Simplify right side
    184.21x = 36,781.27
  5. Step 5: Solve for x
    x = 36,781.27/184.21
  6. Step 6: Final answer
    x = 199.67

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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.