Home / 378,532.14-522,382.87-215,162.73

Finding the Fourth Proportional to 378,532.14, 522,382.87 and 215,162.73

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Solution

The fourth proportional to 378,532.14, 522,382.87 and 215,162.73 is: 296,929.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,532.14 : 522,382.87 = 215,162.73 : x
  2. Step 2: Convert to fraction form
    378,532.14/522,382.87 = 215,162.73/x
  3. Step 3: Cross multiply
    378,532.14x = 522,382.87 × 215,162.73
  4. Step 4: Simplify right side
    378,532.14x = 112,397,324,683.39
  5. Step 5: Solve for x
    x = 112,397,324,683.39/378,532.14
  6. Step 6: Final answer
    x = 296,929.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.