Home / 208,350.87-312,382.69-82,005.62

Finding the Fourth Proportional to 208,350.87, 312,382.69 and 82,005.62

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Solution

The fourth proportional to 208,350.87, 312,382.69 and 82,005.62 is: 122,951.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,350.87 : 312,382.69 = 82,005.62 : x
  2. Step 2: Convert to fraction form
    208,350.87/312,382.69 = 82,005.62/x
  3. Step 3: Cross multiply
    208,350.87x = 312,382.69 × 82,005.62
  4. Step 4: Simplify right side
    208,350.87x = 25,617,135,760.69
  5. Step 5: Solve for x
    x = 25,617,135,760.69/208,350.87
  6. Step 6: Final answer
    x = 122,951.90

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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.