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Finding the Fourth Proportional to 354.22, 531.21 and 224.37

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Solution

The fourth proportional to 354.22, 531.21 and 224.37 is: 336.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    354.22 : 531.21 = 224.37 : x
  2. Step 2: Convert to fraction form
    354.22/531.21 = 224.37/x
  3. Step 3: Cross multiply
    354.22x = 531.21 × 224.37
  4. Step 4: Simplify right side
    354.22x = 119,184.93
  5. Step 5: Solve for x
    x = 119,184.93/354.22
  6. Step 6: Final answer
    x = 336.48

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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.