Home / 221,469.48-305,623.62-120,868.20

Finding the Fourth Proportional to 221,469.48, 305,623.62 and 120,868.20

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Solution

The fourth proportional to 221,469.48, 305,623.62 and 120,868.20 is: 166,795.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,469.48 : 305,623.62 = 120,868.20 : x
  2. Step 2: Convert to fraction form
    221,469.48/305,623.62 = 120,868.20/x
  3. Step 3: Cross multiply
    221,469.48x = 305,623.62 × 120,868.20
  4. Step 4: Simplify right side
    221,469.48x = 36,940,176,826.88
  5. Step 5: Solve for x
    x = 36,940,176,826.88/221,469.48
  6. Step 6: Final answer
    x = 166,795.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.