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Finding the Fourth Proportional to 208,453.77, 313,099.11 and 124,378.02

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Solution

The fourth proportional to 208,453.77, 313,099.11 and 124,378.02 is: 186,816.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,453.77 : 313,099.11 = 124,378.02 : x
  2. Step 2: Convert to fraction form
    208,453.77/313,099.11 = 124,378.02/x
  3. Step 3: Cross multiply
    208,453.77x = 313,099.11 × 124,378.02
  4. Step 4: Simplify right side
    208,453.77x = 38,942,647,365.56
  5. Step 5: Solve for x
    x = 38,942,647,365.56/208,453.77
  6. Step 6: Final answer
    x = 186,816.71

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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.