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Finding the Fourth Proportional to 334.41, 461.62 and 218.31

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Solution

The fourth proportional to 334.41, 461.62 and 218.31 is: 301.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.41 : 461.62 = 218.31 : x
  2. Step 2: Convert to fraction form
    334.41/461.62 = 218.31/x
  3. Step 3: Cross multiply
    334.41x = 461.62 × 218.31
  4. Step 4: Simplify right side
    334.41x = 100,774.80
  5. Step 5: Solve for x
    x = 100,774.80/334.41
  6. Step 6: Final answer
    x = 301.35

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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.