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Finding the Fourth Proportional to 335.96, 504.24 and 220.76

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Solution

The fourth proportional to 335.96, 504.24 and 220.76 is: 331.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.96 : 504.24 = 220.76 : x
  2. Step 2: Convert to fraction form
    335.96/504.24 = 220.76/x
  3. Step 3: Cross multiply
    335.96x = 504.24 × 220.76
  4. Step 4: Simplify right side
    335.96x = 111,316.02
  5. Step 5: Solve for x
    x = 111,316.02/335.96
  6. Step 6: Final answer
    x = 331.34

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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.