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Finding the Fourth Proportional to 221,785.70, 332,241.15 and 132,774.80

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Solution

The fourth proportional to 221,785.70, 332,241.15 and 132,774.80 is: 198,900.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,785.70 : 332,241.15 = 132,774.80 : x
  2. Step 2: Convert to fraction form
    221,785.70/332,241.15 = 132,774.80/x
  3. Step 3: Cross multiply
    221,785.70x = 332,241.15 × 132,774.80
  4. Step 4: Simplify right side
    221,785.70x = 44,113,252,243.02
  5. Step 5: Solve for x
    x = 44,113,252,243.02/221,785.70
  6. Step 6: Final answer
    x = 198,900.34

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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.