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Finding the Fourth Proportional to 221,653.80, 332,480.70 and 200,226.60

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Solution

The fourth proportional to 221,653.80, 332,480.70 and 200,226.60 is: 300,339.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,653.80 : 332,480.70 = 200,226.60 : x
  2. Step 2: Convert to fraction form
    221,653.80/332,480.70 = 200,226.60/x
  3. Step 3: Cross multiply
    221,653.80x = 332,480.70 × 200,226.60
  4. Step 4: Simplify right side
    221,653.80x = 66,571,480,126.62
  5. Step 5: Solve for x
    x = 66,571,480,126.62/221,653.80
  6. Step 6: Final answer
    x = 300,339.90

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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.