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Finding the Fourth Proportional to 334.62, 461.64 and 194.71

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Solution

The fourth proportional to 334.62, 461.64 and 194.71 is: 268.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.62 : 461.64 = 194.71 : x
  2. Step 2: Convert to fraction form
    334.62/461.64 = 194.71/x
  3. Step 3: Cross multiply
    334.62x = 461.64 × 194.71
  4. Step 4: Simplify right side
    334.62x = 89,885.92
  5. Step 5: Solve for x
    x = 89,885.92/334.62
  6. Step 6: Final answer
    x = 268.62

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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.