Home / 664,867.20-997,300.78-166,231.20

Finding the Fourth Proportional to 664,867.20, 997,300.78 and 166,231.20

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Solution

The fourth proportional to 664,867.20, 997,300.78 and 166,231.20 is: 249,346.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,867.20 : 997,300.78 = 166,231.20 : x
  2. Step 2: Convert to fraction form
    664,867.20/997,300.78 = 166,231.20/x
  3. Step 3: Cross multiply
    664,867.20x = 997,300.78 × 166,231.20
  4. Step 4: Simplify right side
    664,867.20x = 165,782,505,420.34
  5. Step 5: Solve for x
    x = 165,782,505,420.34/664,867.20
  6. Step 6: Final answer
    x = 249,346.79

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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.