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Finding the Fourth Proportional to 664,133.50, 996,200.25 and 220,901.50

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Solution

The fourth proportional to 664,133.50, 996,200.25 and 220,901.50 is: 331,352.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,133.50 : 996,200.25 = 220,901.50 : x
  2. Step 2: Convert to fraction form
    664,133.50/996,200.25 = 220,901.50/x
  3. Step 3: Cross multiply
    664,133.50x = 996,200.25 × 220,901.50
  4. Step 4: Simplify right side
    664,133.50x = 220,062,129,525.38
  5. Step 5: Solve for x
    x = 220,062,129,525.38/664,133.50
  6. Step 6: Final answer
    x = 331,352.25

Related Problems

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Half scale
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Double scale
Find fourth proportional to 664,134.50, 996,201.75 and 220,902.50
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.