Home / 378,760.90-568,228.82-112,515.52

Finding the Fourth Proportional to 378,760.90, 568,228.82 and 112,515.52

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Solution

The fourth proportional to 378,760.90, 568,228.82 and 112,515.52 is: 168,799.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,760.90 : 568,228.82 = 112,515.52 : x
  2. Step 2: Convert to fraction form
    378,760.90/568,228.82 = 112,515.52/x
  3. Step 3: Cross multiply
    378,760.90x = 568,228.82 × 112,515.52
  4. Step 4: Simplify right side
    378,760.90x = 63,934,561,161.29
  5. Step 5: Solve for x
    x = 63,934,561,161.29/378,760.90
  6. Step 6: Final answer
    x = 168,799.26

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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.