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Finding the Fourth Proportional to 335.43, 463.02 and 221.85

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Solution

The fourth proportional to 335.43, 463.02 and 221.85 is: 306.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.43 : 463.02 = 221.85 : x
  2. Step 2: Convert to fraction form
    335.43/463.02 = 221.85/x
  3. Step 3: Cross multiply
    335.43x = 463.02 × 221.85
  4. Step 4: Simplify right side
    335.43x = 102,720.99
  5. Step 5: Solve for x
    x = 102,720.99/335.43
  6. Step 6: Final answer
    x = 306.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.