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Finding the Fourth Proportional to 221,876.40, 332,620.20 and 133,035.60

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Solution

The fourth proportional to 221,876.40, 332,620.20 and 133,035.60 is: 199,436.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,876.40 : 332,620.20 = 133,035.60 : x
  2. Step 2: Convert to fraction form
    221,876.40/332,620.20 = 133,035.60/x
  3. Step 3: Cross multiply
    221,876.40x = 332,620.20 × 133,035.60
  4. Step 4: Simplify right side
    221,876.40x = 44,250,327,879.12
  5. Step 5: Solve for x
    x = 44,250,327,879.12/221,876.40
  6. Step 6: Final answer
    x = 199,436.84

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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.