Home / 221,640.20-332,241.60-109,228.40

Finding the Fourth Proportional to 221,640.20, 332,241.60 and 109,228.40

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Solution

The fourth proportional to 221,640.20, 332,241.60 and 109,228.40 is: 163,734.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,640.20 : 332,241.60 = 109,228.40 : x
  2. Step 2: Convert to fraction form
    221,640.20/332,241.60 = 109,228.40/x
  3. Step 3: Cross multiply
    221,640.20x = 332,241.60 × 109,228.40
  4. Step 4: Simplify right side
    221,640.20x = 36,290,218,381.44
  5. Step 5: Solve for x
    x = 36,290,218,381.44/221,640.20
  6. Step 6: Final answer
    x = 163,734.82

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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.