Home / 220,922.20-304,872.60-120,320.20

Finding the Fourth Proportional to 220,922.20, 304,872.60 and 120,320.20

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Solution

The fourth proportional to 220,922.20, 304,872.60 and 120,320.20 is: 166,041.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,922.20 : 304,872.60 = 120,320.20 : x
  2. Step 2: Convert to fraction form
    220,922.20/304,872.60 = 120,320.20/x
  3. Step 3: Cross multiply
    220,922.20x = 304,872.60 × 120,320.20
  4. Step 4: Simplify right side
    220,922.20x = 36,682,332,206.52
  5. Step 5: Solve for x
    x = 36,682,332,206.52/220,922.20
  6. Step 6: Final answer
    x = 166,041.86

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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.