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Finding the Fourth Proportional to 337.37, 505.04 and 221.48

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Solution

The fourth proportional to 337.37, 505.04 and 221.48 is: 331.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    337.37 : 505.04 = 221.48 : x
  2. Step 2: Convert to fraction form
    337.37/505.04 = 221.48/x
  3. Step 3: Cross multiply
    337.37x = 505.04 × 221.48
  4. Step 4: Simplify right side
    337.37x = 111,857.36
  5. Step 5: Solve for x
    x = 111,857.36/337.37
  6. Step 6: Final answer
    x = 331.56

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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.