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Finding the Fourth Proportional to 225.10, 335.48 and 223.21

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Solution

The fourth proportional to 225.10, 335.48 and 223.21 is: 332.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.10 : 335.48 = 223.21 : x
  2. Step 2: Convert to fraction form
    225.10/335.48 = 223.21/x
  3. Step 3: Cross multiply
    225.10x = 335.48 × 223.21
  4. Step 4: Simplify right side
    225.10x = 74,882.49
  5. Step 5: Solve for x
    x = 74,882.49/225.10
  6. Step 6: Final answer
    x = 332.66

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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.