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Finding the Fourth Proportional to 334.59, 461.42 and 229.79

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Solution

The fourth proportional to 334.59, 461.42 and 229.79 is: 316.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.59 : 461.42 = 229.79 : x
  2. Step 2: Convert to fraction form
    334.59/461.42 = 229.79/x
  3. Step 3: Cross multiply
    334.59x = 461.42 × 229.79
  4. Step 4: Simplify right side
    334.59x = 106,029.71
  5. Step 5: Solve for x
    x = 106,029.71/334.59
  6. Step 6: Final answer
    x = 316.89

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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.