Home / 208,143.92-312,215.89-50,372.38

Finding the Fourth Proportional to 208,143.92, 312,215.89 and 50,372.38

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Solution

The fourth proportional to 208,143.92, 312,215.89 and 50,372.38 is: 75,558.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,143.92 : 312,215.89 = 50,372.38 : x
  2. Step 2: Convert to fraction form
    208,143.92/312,215.89 = 50,372.38/x
  3. Step 3: Cross multiply
    208,143.92x = 312,215.89 × 50,372.38
  4. Step 4: Simplify right side
    208,143.92x = 15,727,057,453.12
  5. Step 5: Solve for x
    x = 15,727,057,453.12/208,143.92
  6. Step 6: Final answer
    x = 75,558.57

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1.5x scale

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.