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Finding the Fourth Proportional to 353.32, 487.53 and 195.94

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Solution

The fourth proportional to 353.32, 487.53 and 195.94 is: 270.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    353.32 : 487.53 = 195.94 : x
  2. Step 2: Convert to fraction form
    353.32/487.53 = 195.94/x
  3. Step 3: Cross multiply
    353.32x = 487.53 × 195.94
  4. Step 4: Simplify right side
    353.32x = 95,525.96
  5. Step 5: Solve for x
    x = 95,525.96/353.32
  6. Step 6: Final answer
    x = 270.37

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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.