Home / 274,231.12-378,441.84-161,055.76

Finding the Fourth Proportional to 274,231.12, 378,441.84 and 161,055.76

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Solution

The fourth proportional to 274,231.12, 378,441.84 and 161,055.76 is: 222,258.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,231.12 : 378,441.84 = 161,055.76 : x
  2. Step 2: Convert to fraction form
    274,231.12/378,441.84 = 161,055.76/x
  3. Step 3: Cross multiply
    274,231.12x = 378,441.84 × 161,055.76
  4. Step 4: Simplify right side
    274,231.12x = 60,950,238,157.00
  5. Step 5: Solve for x
    x = 60,950,238,157.00/274,231.12
  6. Step 6: Final answer
    x = 222,258.65

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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.