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Finding the Fourth Proportional to 325,383.20, 487,844.40 and 125,626.40

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Solution

The fourth proportional to 325,383.20, 487,844.40 and 125,626.40 is: 188,350.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,383.20 : 487,844.40 = 125,626.40 : x
  2. Step 2: Convert to fraction form
    325,383.20/487,844.40 = 125,626.40/x
  3. Step 3: Cross multiply
    325,383.20x = 487,844.40 × 125,626.40
  4. Step 4: Simplify right side
    325,383.20x = 61,286,135,732.16
  5. Step 5: Solve for x
    x = 61,286,135,732.16/325,383.20
  6. Step 6: Final answer
    x = 188,350.65

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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.