Home / 221,429.20-332,192.40-109,163.20

Finding the Fourth Proportional to 221,429.20, 332,192.40 and 109,163.20

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Solution

The fourth proportional to 221,429.20, 332,192.40 and 109,163.20 is: 163,768.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,429.20 : 332,192.40 = 109,163.20 : x
  2. Step 2: Convert to fraction form
    221,429.20/332,192.40 = 109,163.20/x
  3. Step 3: Cross multiply
    221,429.20x = 332,192.40 × 109,163.20
  4. Step 4: Simplify right side
    221,429.20x = 36,263,185,399.68
  5. Step 5: Solve for x
    x = 36,263,185,399.68/221,429.20
  6. Step 6: Final answer
    x = 163,768.76

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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.