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Finding the Fourth Proportional to 248.80, 375.24 and 223.20

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Solution

The fourth proportional to 248.80, 375.24 and 223.20 is: 336.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.80 : 375.24 = 223.20 : x
  2. Step 2: Convert to fraction form
    248.80/375.24 = 223.20/x
  3. Step 3: Cross multiply
    248.80x = 375.24 × 223.20
  4. Step 4: Simplify right side
    248.80x = 83,753.57
  5. Step 5: Solve for x
    x = 83,753.57/248.80
  6. Step 6: Final answer
    x = 336.63

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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.