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Finding the Fourth Proportional to 216,939.38, 325,414.82 and 69,195.38

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Solution

The fourth proportional to 216,939.38, 325,414.82 and 69,195.38 is: 103,794.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,939.38 : 325,414.82 = 69,195.38 : x
  2. Step 2: Convert to fraction form
    216,939.38/325,414.82 = 69,195.38/x
  3. Step 3: Cross multiply
    216,939.38x = 325,414.82 × 69,195.38
  4. Step 4: Simplify right side
    216,939.38x = 22,517,200,673.45
  5. Step 5: Solve for x
    x = 22,517,200,673.45/216,939.38
  6. Step 6: Final answer
    x = 103,794.90

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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.