Home / 239,942.38-331,120.48-139,346.86

Finding the Fourth Proportional to 239,942.38, 331,120.48 and 139,346.86

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Solution

The fourth proportional to 239,942.38, 331,120.48 and 139,346.86 is: 192,298.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,942.38 : 331,120.48 = 139,346.86 : x
  2. Step 2: Convert to fraction form
    239,942.38/331,120.48 = 139,346.86/x
  3. Step 3: Cross multiply
    239,942.38x = 331,120.48 × 139,346.86
  4. Step 4: Simplify right side
    239,942.38x = 46,140,597,514.09
  5. Step 5: Solve for x
    x = 46,140,597,514.09/239,942.38
  6. Step 6: Final answer
    x = 192,298.66

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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.