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Finding the Fourth Proportional to 250.96, 378.36 and 248.88

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Solution

The fourth proportional to 250.96, 378.36 and 248.88 is: 375.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.96 : 378.36 = 248.88 : x
  2. Step 2: Convert to fraction form
    250.96/378.36 = 248.88/x
  3. Step 3: Cross multiply
    250.96x = 378.36 × 248.88
  4. Step 4: Simplify right side
    250.96x = 94,166.24
  5. Step 5: Solve for x
    x = 94,166.24/250.96
  6. Step 6: Final answer
    x = 375.22

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.