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Finding the Fourth Proportional to 252.20, 376.37 and 223.31

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Solution

The fourth proportional to 252.20, 376.37 and 223.31 is: 333.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.20 : 376.37 = 223.31 : x
  2. Step 2: Convert to fraction form
    252.20/376.37 = 223.31/x
  3. Step 3: Cross multiply
    252.20x = 376.37 × 223.31
  4. Step 4: Simplify right side
    252.20x = 84,044.19
  5. Step 5: Solve for x
    x = 84,044.19/252.20
  6. Step 6: Final answer
    x = 333.25

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.