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Finding the Fourth Proportional to 326.63, 490.05 and 224.03

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Solution

The fourth proportional to 326.63, 490.05 and 224.03 is: 336.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    326.63 : 490.05 = 224.03 : x
  2. Step 2: Convert to fraction form
    326.63/490.05 = 224.03/x
  3. Step 3: Cross multiply
    326.63x = 490.05 × 224.03
  4. Step 4: Simplify right side
    326.63x = 109,787.13
  5. Step 5: Solve for x
    x = 109,787.13/326.63
  6. Step 6: Final answer
    x = 336.12

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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.