Home / 221,902.20-332,634.60-109,490.40

Finding the Fourth Proportional to 221,902.20, 332,634.60 and 109,490.40

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Solution

The fourth proportional to 221,902.20, 332,634.60 and 109,490.40 is: 164,127.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,902.20 : 332,634.60 = 109,490.40 : x
  2. Step 2: Convert to fraction form
    221,902.20/332,634.60 = 109,490.40/x
  3. Step 3: Cross multiply
    221,902.20x = 332,634.60 × 109,490.40
  4. Step 4: Simplify right side
    221,902.20x = 36,420,295,407.84
  5. Step 5: Solve for x
    x = 36,420,295,407.84/221,902.20
  6. Step 6: Final answer
    x = 164,127.69

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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.