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Finding the Fourth Proportional to 221,680.40, 332,520.60 and 155,195.60

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Solution

The fourth proportional to 221,680.40, 332,520.60 and 155,195.60 is: 232,793.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,680.40 : 332,520.60 = 155,195.60 : x
  2. Step 2: Convert to fraction form
    221,680.40/332,520.60 = 155,195.60/x
  3. Step 3: Cross multiply
    221,680.40x = 332,520.60 × 155,195.60
  4. Step 4: Simplify right side
    221,680.40x = 51,605,734,029.36
  5. Step 5: Solve for x
    x = 51,605,734,029.36/221,680.40
  6. Step 6: Final answer
    x = 232,793.40

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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.