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Finding the Fourth Proportional to 335.21, 462.53 and 195.31

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Solution

The fourth proportional to 335.21, 462.53 and 195.31 is: 269.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.21 : 462.53 = 195.31 : x
  2. Step 2: Convert to fraction form
    335.21/462.53 = 195.31/x
  3. Step 3: Cross multiply
    335.21x = 462.53 × 195.31
  4. Step 4: Simplify right side
    335.21x = 90,333.45
  5. Step 5: Solve for x
    x = 90,333.45/335.21
  6. Step 6: Final answer
    x = 269.48

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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.