Home / 319,558.52-479,337.78-109,198.28

Finding the Fourth Proportional to 319,558.52, 479,337.78 and 109,198.28

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Solution

The fourth proportional to 319,558.52, 479,337.78 and 109,198.28 is: 163,797.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,558.52 : 479,337.78 = 109,198.28 : x
  2. Step 2: Convert to fraction form
    319,558.52/479,337.78 = 109,198.28/x
  3. Step 3: Cross multiply
    319,558.52x = 479,337.78 × 109,198.28
  4. Step 4: Simplify right side
    319,558.52x = 52,342,861,115.02
  5. Step 5: Solve for x
    x = 52,342,861,115.02/319,558.52
  6. Step 6: Final answer
    x = 163,797.42

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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.