Home / 250,198.11-345,187.71-142,690.86

Finding the Fourth Proportional to 250,198.11, 345,187.71 and 142,690.86

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Solution

The fourth proportional to 250,198.11, 345,187.71 and 142,690.86 is: 196,864.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,198.11 : 345,187.71 = 142,690.86 : x
  2. Step 2: Convert to fraction form
    250,198.11/345,187.71 = 142,690.86/x
  3. Step 3: Cross multiply
    250,198.11x = 345,187.71 × 142,690.86
  4. Step 4: Simplify right side
    250,198.11x = 49,255,131,201.33
  5. Step 5: Solve for x
    x = 49,255,131,201.33/250,198.11
  6. Step 6: Final answer
    x = 196,864.52

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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.