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Finding the Fourth Proportional to 263.54, 394.95 and 223.04

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Solution

The fourth proportional to 263.54, 394.95 and 223.04 is: 334.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.54 : 394.95 = 223.04 : x
  2. Step 2: Convert to fraction form
    263.54/394.95 = 223.04/x
  3. Step 3: Cross multiply
    263.54x = 394.95 × 223.04
  4. Step 4: Simplify right side
    263.54x = 88,089.65
  5. Step 5: Solve for x
    x = 88,089.65/263.54
  6. Step 6: Final answer
    x = 334.26

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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.