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Finding the Fourth Proportional to 335.70, 463.37 and 217.85

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Solution

The fourth proportional to 335.70, 463.37 and 217.85 is: 300.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.70 : 463.37 = 217.85 : x
  2. Step 2: Convert to fraction form
    335.70/463.37 = 217.85/x
  3. Step 3: Cross multiply
    335.70x = 463.37 × 217.85
  4. Step 4: Simplify right side
    335.70x = 100,941.75
  5. Step 5: Solve for x
    x = 100,941.75/335.70
  6. Step 6: Final answer
    x = 300.69

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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.