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Finding the Fourth Proportional to 665,479.56, 998,219.34 and 166,843.56

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Solution

The fourth proportional to 665,479.56, 998,219.34 and 166,843.56 is: 250,265.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,479.56 : 998,219.34 = 166,843.56 : x
  2. Step 2: Convert to fraction form
    665,479.56/998,219.34 = 166,843.56/x
  3. Step 3: Cross multiply
    665,479.56x = 998,219.34 × 166,843.56
  4. Step 4: Simplify right side
    665,479.56x = 166,546,468,346.45
  5. Step 5: Solve for x
    x = 166,546,468,346.45/665,479.56
  6. Step 6: Final answer
    x = 250,265.34

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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.