Home / 208,489.75-312,732.09-50,718.35

Finding the Fourth Proportional to 208,489.75, 312,732.09 and 50,718.35

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Solution

The fourth proportional to 208,489.75, 312,732.09 and 50,718.35 is: 76,076.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,489.75 : 312,732.09 = 50,718.35 : x
  2. Step 2: Convert to fraction form
    208,489.75/312,732.09 = 50,718.35/x
  3. Step 3: Cross multiply
    208,489.75x = 312,732.09 × 50,718.35
  4. Step 4: Simplify right side
    208,489.75x = 15,861,256,378.68
  5. Step 5: Solve for x
    x = 15,861,256,378.68/208,489.75
  6. Step 6: Final answer
    x = 76,076.91

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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.