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Finding the Fourth Proportional to 208,389.69, 312,580.22 and 50,618.97

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Solution

The fourth proportional to 208,389.69, 312,580.22 and 50,618.97 is: 75,927.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,389.69 : 312,580.22 = 50,618.97 : x
  2. Step 2: Convert to fraction form
    208,389.69/312,580.22 = 50,618.97/x
  3. Step 3: Cross multiply
    208,389.69x = 312,580.22 × 50,618.97
  4. Step 4: Simplify right side
    208,389.69x = 15,822,488,525.68
  5. Step 5: Solve for x
    x = 15,822,488,525.68/208,389.69
  6. Step 6: Final answer
    x = 75,927.41

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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.