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Finding the Fourth Proportional to 221,409.60, 332,114.40 and 109,107.15

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Solution

The fourth proportional to 221,409.60, 332,114.40 and 109,107.15 is: 163,660.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,409.60 : 332,114.40 = 109,107.15 : x
  2. Step 2: Convert to fraction form
    221,409.60/332,114.40 = 109,107.15/x
  3. Step 3: Cross multiply
    221,409.60x = 332,114.40 × 109,107.15
  4. Step 4: Simplify right side
    221,409.60x = 36,236,055,657.96
  5. Step 5: Solve for x
    x = 36,236,055,657.96/221,409.60
  6. Step 6: Final answer
    x = 163,660.73

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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.