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Finding the Fourth Proportional to 607.83, 911.74 and 196.97

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Solution

The fourth proportional to 607.83, 911.74 and 196.97 is: 295.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.83 : 911.74 = 196.97 : x
  2. Step 2: Convert to fraction form
    607.83/911.74 = 196.97/x
  3. Step 3: Cross multiply
    607.83x = 911.74 × 196.97
  4. Step 4: Simplify right side
    607.83x = 179,585.43
  5. Step 5: Solve for x
    x = 179,585.43/607.83
  6. Step 6: Final answer
    x = 295.45

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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.