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Finding the Fourth Proportional to 254.36, 380.94 and 248.24

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Solution

The fourth proportional to 254.36, 380.94 and 248.24 is: 371.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    254.36 : 380.94 = 248.24 : x
  2. Step 2: Convert to fraction form
    254.36/380.94 = 248.24/x
  3. Step 3: Cross multiply
    254.36x = 380.94 × 248.24
  4. Step 4: Simplify right side
    254.36x = 94,564.55
  5. Step 5: Solve for x
    x = 94,564.55/254.36
  6. Step 6: Final answer
    x = 371.77

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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.