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Finding the Fourth Proportional to 606.62, 909.92 and 195.86

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Solution

The fourth proportional to 606.62, 909.92 and 195.86 is: 293.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.62 : 909.92 = 195.86 : x
  2. Step 2: Convert to fraction form
    606.62/909.92 = 195.86/x
  3. Step 3: Cross multiply
    606.62x = 909.92 × 195.86
  4. Step 4: Simplify right side
    606.62x = 178,216.93
  5. Step 5: Solve for x
    x = 178,216.93/606.62
  6. Step 6: Final answer
    x = 293.79

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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.