Home / 221,890.20-332,616.60-109,478.40

Finding the Fourth Proportional to 221,890.20, 332,616.60 and 109,478.40

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Solution

The fourth proportional to 221,890.20, 332,616.60 and 109,478.40 is: 164,109.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,890.20 : 332,616.60 = 109,478.40 : x
  2. Step 2: Convert to fraction form
    221,890.20/332,616.60 = 109,478.40/x
  3. Step 3: Cross multiply
    221,890.20x = 332,616.60 × 109,478.40
  4. Step 4: Simplify right side
    221,890.20x = 36,414,333,181.44
  5. Step 5: Solve for x
    x = 36,414,333,181.44/221,890.20
  6. Step 6: Final answer
    x = 164,109.70

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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.