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Finding the Fourth Proportional to 379,219.52, 568,873.02 and 126,533.54

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Solution

The fourth proportional to 379,219.52, 568,873.02 and 126,533.54 is: 189,814.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,219.52 : 568,873.02 = 126,533.54 : x
  2. Step 2: Convert to fraction form
    379,219.52/568,873.02 = 126,533.54/x
  3. Step 3: Cross multiply
    379,219.52x = 568,873.02 × 126,533.54
  4. Step 4: Simplify right side
    379,219.52x = 71,981,518,927.77
  5. Step 5: Solve for x
    x = 71,981,518,927.77/379,219.52
  6. Step 6: Final answer
    x = 189,814.91

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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.