Home / 221,716.20-332,355.60-109,304.40

Finding the Fourth Proportional to 221,716.20, 332,355.60 and 109,304.40

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Solution

The fourth proportional to 221,716.20, 332,355.60 and 109,304.40 is: 163,848.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,716.20 : 332,355.60 = 109,304.40 : x
  2. Step 2: Convert to fraction form
    221,716.20/332,355.60 = 109,304.40/x
  3. Step 3: Cross multiply
    221,716.20x = 332,355.60 × 109,304.40
  4. Step 4: Simplify right side
    221,716.20x = 36,327,929,444.64
  5. Step 5: Solve for x
    x = 36,327,929,444.64/221,716.20
  6. Step 6: Final answer
    x = 163,848.78

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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.