Home / 378,766.93-568,240.61-142,111.66

Finding the Fourth Proportional to 378,766.93, 568,240.61 and 142,111.66

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Solution

The fourth proportional to 378,766.93, 568,240.61 and 142,111.66 is: 213,201.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,766.93 : 568,240.61 = 142,111.66 : x
  2. Step 2: Convert to fraction form
    378,766.93/568,240.61 = 142,111.66/x
  3. Step 3: Cross multiply
    378,766.93x = 568,240.61 × 142,111.66
  4. Step 4: Simplify right side
    378,766.93x = 80,753,615,034.54
  5. Step 5: Solve for x
    x = 80,753,615,034.54/378,766.93
  6. Step 6: Final answer
    x = 213,201.34

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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.