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Finding the Fourth Proportional to 607.75, 911.62 and 196.92

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Solution

The fourth proportional to 607.75, 911.62 and 196.92 is: 295.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.75 : 911.62 = 196.92 : x
  2. Step 2: Convert to fraction form
    607.75/911.62 = 196.92/x
  3. Step 3: Cross multiply
    607.75x = 911.62 × 196.92
  4. Step 4: Simplify right side
    607.75x = 179,516.46
  5. Step 5: Solve for x
    x = 179,516.46/607.75
  6. Step 6: Final answer
    x = 295.38

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.