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Finding the Fourth Proportional to 221,626.80, 332,245.80 and 132,915.60

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Solution

The fourth proportional to 221,626.80, 332,245.80 and 132,915.60 is: 199,256.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,626.80 : 332,245.80 = 132,915.60 : x
  2. Step 2: Convert to fraction form
    221,626.80/332,245.80 = 132,915.60/x
  3. Step 3: Cross multiply
    221,626.80x = 332,245.80 × 132,915.60
  4. Step 4: Simplify right side
    221,626.80x = 44,160,649,854.48
  5. Step 5: Solve for x
    x = 44,160,649,854.48/221,626.80
  6. Step 6: Final answer
    x = 199,256.81

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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.