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Finding the Fourth Proportional to 335.14, 502.74 and 129.96

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Solution

The fourth proportional to 335.14, 502.74 and 129.96 is: 194.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.14 : 502.74 = 129.96 : x
  2. Step 2: Convert to fraction form
    335.14/502.74 = 129.96/x
  3. Step 3: Cross multiply
    335.14x = 502.74 × 129.96
  4. Step 4: Simplify right side
    335.14x = 65,336.09
  5. Step 5: Solve for x
    x = 65,336.09/335.14
  6. Step 6: Final answer
    x = 194.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.