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Finding the Fourth Proportional to 254.24, 380.88 and 151.22

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Solution

The fourth proportional to 254.24, 380.88 and 151.22 is: 226.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    254.24 : 380.88 = 151.22 : x
  2. Step 2: Convert to fraction form
    254.24/380.88 = 151.22/x
  3. Step 3: Cross multiply
    254.24x = 380.88 × 151.22
  4. Step 4: Simplify right side
    254.24x = 57,594.77
  5. Step 5: Solve for x
    x = 57,594.77/254.24
  6. Step 6: Final answer
    x = 226.54

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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.