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Finding the Fourth Proportional to 221,866.40, 332,799.60 and 133,074.20

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Solution

The fourth proportional to 221,866.40, 332,799.60 and 133,074.20 is: 199,611.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,866.40 : 332,799.60 = 133,074.20 : x
  2. Step 2: Convert to fraction form
    221,866.40/332,799.60 = 133,074.20/x
  3. Step 3: Cross multiply
    221,866.40x = 332,799.60 × 133,074.20
  4. Step 4: Simplify right side
    221,866.40x = 44,287,040,530.32
  5. Step 5: Solve for x
    x = 44,287,040,530.32/221,866.40
  6. Step 6: Final answer
    x = 199,611.30

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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.