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Finding the Fourth Proportional to 221,555.70, 332,333.55 and 132,909.30

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Solution

The fourth proportional to 221,555.70, 332,333.55 and 132,909.30 is: 199,363.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,555.70 : 332,333.55 = 132,909.30 : x
  2. Step 2: Convert to fraction form
    221,555.70/332,333.55 = 132,909.30/x
  3. Step 3: Cross multiply
    221,555.70x = 332,333.55 × 132,909.30
  4. Step 4: Simplify right side
    221,555.70x = 44,170,219,497.02
  5. Step 5: Solve for x
    x = 44,170,219,497.02/221,555.70
  6. Step 6: Final answer
    x = 199,363.95

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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.