Home / 317,977.38-438,626.07-198,538.02

Finding the Fourth Proportional to 317,977.38, 438,626.07 and 198,538.02

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Solution

The fourth proportional to 317,977.38, 438,626.07 and 198,538.02 is: 273,868.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,977.38 : 438,626.07 = 198,538.02 : x
  2. Step 2: Convert to fraction form
    317,977.38/438,626.07 = 198,538.02/x
  3. Step 3: Cross multiply
    317,977.38x = 438,626.07 × 198,538.02
  4. Step 4: Simplify right side
    317,977.38x = 87,083,951,458.18
  5. Step 5: Solve for x
    x = 87,083,951,458.18/317,977.38
  6. Step 6: Final answer
    x = 273,868.38

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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.