Home / 319,788.69-479,522.39-106,481.21

Finding the Fourth Proportional to 319,788.69, 479,522.39 and 106,481.21

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Solution

The fourth proportional to 319,788.69, 479,522.39 and 106,481.21 is: 159,668.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,788.69 : 479,522.39 = 106,481.21 : x
  2. Step 2: Convert to fraction form
    319,788.69/479,522.39 = 106,481.21/x
  3. Step 3: Cross multiply
    319,788.69x = 479,522.39 × 106,481.21
  4. Step 4: Simplify right side
    319,788.69x = 51,060,121,379.27
  5. Step 5: Solve for x
    x = 51,060,121,379.27/319,788.69
  6. Step 6: Final answer
    x = 159,668.32

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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.