Home / 378,837.45-568,233.86-142,160.13

Finding the Fourth Proportional to 378,837.45, 568,233.86 and 142,160.13

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Solution

The fourth proportional to 378,837.45, 568,233.86 and 142,160.13 is: 213,231.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,837.45 : 568,233.86 = 142,160.13 : x
  2. Step 2: Convert to fraction form
    378,837.45/568,233.86 = 142,160.13/x
  3. Step 3: Cross multiply
    378,837.45x = 568,233.86 × 142,160.13
  4. Step 4: Simplify right side
    378,837.45x = 80,780,198,697.20
  5. Step 5: Solve for x
    x = 80,780,198,697.20/378,837.45
  6. Step 6: Final answer
    x = 213,231.82

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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.