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Finding the Fourth Proportional to 254.41, 380.84 and 162.98

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Solution

The fourth proportional to 254.41, 380.84 and 162.98 is: 243.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    254.41 : 380.84 = 162.98 : x
  2. Step 2: Convert to fraction form
    254.41/380.84 = 162.98/x
  3. Step 3: Cross multiply
    254.41x = 380.84 × 162.98
  4. Step 4: Simplify right side
    254.41x = 62,067.81
  5. Step 5: Solve for x
    x = 62,067.81/254.41
  6. Step 6: Final answer
    x = 243.97

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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.