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Finding the Fourth Proportional to 334.22, 461.21 and 203.21

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Solution

The fourth proportional to 334.22, 461.21 and 203.21 is: 280.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.22 : 461.21 = 203.21 : x
  2. Step 2: Convert to fraction form
    334.22/461.21 = 203.21/x
  3. Step 3: Cross multiply
    334.22x = 461.21 × 203.21
  4. Step 4: Simplify right side
    334.22x = 93,720.18
  5. Step 5: Solve for x
    x = 93,720.18/334.22
  6. Step 6: Final answer
    x = 280.41

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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.