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Finding the Fourth Proportional to 334.65, 461.84 and 194.80

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Solution

The fourth proportional to 334.65, 461.84 and 194.80 is: 268.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.65 : 461.84 = 194.80 : x
  2. Step 2: Convert to fraction form
    334.65/461.84 = 194.80/x
  3. Step 3: Cross multiply
    334.65x = 461.84 × 194.80
  4. Step 4: Simplify right side
    334.65x = 89,966.43
  5. Step 5: Solve for x
    x = 89,966.43/334.65
  6. Step 6: Final answer
    x = 268.84

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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.