Home / 221,728.38-332,625.39-81,476.07

Finding the Fourth Proportional to 221,728.38, 332,625.39 and 81,476.07

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Solution

The fourth proportional to 221,728.38, 332,625.39 and 81,476.07 is: 122,226.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,728.38 : 332,625.39 = 81,476.07 : x
  2. Step 2: Convert to fraction form
    221,728.38/332,625.39 = 81,476.07/x
  3. Step 3: Cross multiply
    221,728.38x = 332,625.39 × 81,476.07
  4. Step 4: Simplify right side
    221,728.38x = 27,101,009,559.42
  5. Step 5: Solve for x
    x = 27,101,009,559.42/221,728.38
  6. Step 6: Final answer
    x = 122,226.17

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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.