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Finding the Fourth Proportional to 335.71, 463.21 and 195.81

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Solution

The fourth proportional to 335.71, 463.21 and 195.81 is: 270.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.71 : 463.21 = 195.81 : x
  2. Step 2: Convert to fraction form
    335.71/463.21 = 195.81/x
  3. Step 3: Cross multiply
    335.71x = 463.21 × 195.81
  4. Step 4: Simplify right side
    335.71x = 90,701.15
  5. Step 5: Solve for x
    x = 90,701.15/335.71
  6. Step 6: Final answer
    x = 270.18

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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.