Home / 221,723.93-331,370.87-161,878.43

Finding the Fourth Proportional to 221,723.93, 331,370.87 and 161,878.43

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Solution

The fourth proportional to 221,723.93, 331,370.87 and 161,878.43 is: 241,930.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,723.93 : 331,370.87 = 161,878.43 : x
  2. Step 2: Convert to fraction form
    221,723.93/331,370.87 = 161,878.43/x
  3. Step 3: Cross multiply
    221,723.93x = 331,370.87 × 161,878.43
  4. Step 4: Simplify right side
    221,723.93x = 53,641,796,202.37
  5. Step 5: Solve for x
    x = 53,641,796,202.37/221,723.93
  6. Step 6: Final answer
    x = 241,930.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.