Home / 220,972.88-331,604.60-121,203

Finding the Fourth Proportional to 220,972.88, 331,604.60 and 121,203

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Solution

The fourth proportional to 220,972.88, 331,604.60 and 121,203 is: 181,884.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,972.88 : 331,604.60 = 121,203 : x
  2. Step 2: Convert to fraction form
    220,972.88/331,604.60 = 121,203/x
  3. Step 3: Cross multiply
    220,972.88x = 331,604.60 × 121,203
  4. Step 4: Simplify right side
    220,972.88x = 40,191,471,727.79
  5. Step 5: Solve for x
    x = 40,191,471,727.79/220,972.88
  6. Step 6: Final answer
    x = 181,884.18

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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.