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Finding the Fourth Proportional to 607.45, 911.12 and 196.47

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Solution

The fourth proportional to 607.45, 911.12 and 196.47 is: 294.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.45 : 911.12 = 196.47 : x
  2. Step 2: Convert to fraction form
    607.45/911.12 = 196.47/x
  3. Step 3: Cross multiply
    607.45x = 911.12 × 196.47
  4. Step 4: Simplify right side
    607.45x = 179,006.76
  5. Step 5: Solve for x
    x = 179,006.76/607.45
  6. Step 6: Final answer
    x = 294.69

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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.