Home / 200,520.28-276,699.60-115,620.96

Finding the Fourth Proportional to 200,520.28, 276,699.60 and 115,620.96

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Solution

The fourth proportional to 200,520.28, 276,699.60 and 115,620.96 is: 159,546.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,520.28 : 276,699.60 = 115,620.96 : x
  2. Step 2: Convert to fraction form
    200,520.28/276,699.60 = 115,620.96/x
  3. Step 3: Cross multiply
    200,520.28x = 276,699.60 × 115,620.96
  4. Step 4: Simplify right side
    200,520.28x = 31,992,273,383.62
  5. Step 5: Solve for x
    x = 31,992,273,383.62/200,520.28
  6. Step 6: Final answer
    x = 159,546.32

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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.