Home / 220,922.36-304,872.84-120,320.36

Finding the Fourth Proportional to 220,922.36, 304,872.84 and 120,320.36

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Solution

The fourth proportional to 220,922.36, 304,872.84 and 120,320.36 is: 166,042.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,922.36 : 304,872.84 = 120,320.36 : x
  2. Step 2: Convert to fraction form
    220,922.36/304,872.84 = 120,320.36/x
  3. Step 3: Cross multiply
    220,922.36x = 304,872.84 × 120,320.36
  4. Step 4: Simplify right side
    220,922.36x = 36,682,408,338.66
  5. Step 5: Solve for x
    x = 36,682,408,338.66/220,922.36
  6. Step 6: Final answer
    x = 166,042.08

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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.