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Finding the Fourth Proportional to 325,043.09, 487,616.58 and 100,350.71

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Solution

The fourth proportional to 325,043.09, 487,616.58 and 100,350.71 is: 150,542.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,043.09 : 487,616.58 = 100,350.71 : x
  2. Step 2: Convert to fraction form
    325,043.09/487,616.58 = 100,350.71/x
  3. Step 3: Cross multiply
    325,043.09x = 487,616.58 × 100,350.71
  4. Step 4: Simplify right side
    325,043.09x = 48,932,667,572.69
  5. Step 5: Solve for x
    x = 48,932,667,572.69/325,043.09
  6. Step 6: Final answer
    x = 150,542.10

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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.