Home / 378,991.24-568,186.98-142,307.56

Finding the Fourth Proportional to 378,991.24, 568,186.98 and 142,307.56

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Solution

The fourth proportional to 378,991.24, 568,186.98 and 142,307.56 is: 213,348.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,991.24 : 568,186.98 = 142,307.56 : x
  2. Step 2: Convert to fraction form
    378,991.24/568,186.98 = 142,307.56/x
  3. Step 3: Cross multiply
    378,991.24x = 568,186.98 × 142,307.56
  4. Step 4: Simplify right side
    378,991.24x = 80,857,302,747.57
  5. Step 5: Solve for x
    x = 80,857,302,747.57/378,991.24
  6. Step 6: Final answer
    x = 213,348.74

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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.