Home / 379,276.11-568,997.26-142,618.79

Finding the Fourth Proportional to 379,276.11, 568,997.26 and 142,618.79

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Solution

The fourth proportional to 379,276.11, 568,997.26 and 142,618.79 is: 213,959.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,276.11 : 568,997.26 = 142,618.79 : x
  2. Step 2: Convert to fraction form
    379,276.11/568,997.26 = 142,618.79/x
  3. Step 3: Cross multiply
    379,276.11x = 568,997.26 × 142,618.79
  4. Step 4: Simplify right side
    379,276.11x = 81,149,701,800.46
  5. Step 5: Solve for x
    x = 81,149,701,800.46/379,276.11
  6. Step 6: Final answer
    x = 213,959.43

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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.