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Finding the Fourth Proportional to 423,690.33, 635,557.37 and 108,149.97

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Solution

The fourth proportional to 423,690.33, 635,557.37 and 108,149.97 is: 162,230.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,690.33 : 635,557.37 = 108,149.97 : x
  2. Step 2: Convert to fraction form
    423,690.33/635,557.37 = 108,149.97/x
  3. Step 3: Cross multiply
    423,690.33x = 635,557.37 × 108,149.97
  4. Step 4: Simplify right side
    423,690.33x = 68,735,509,958.03
  5. Step 5: Solve for x
    x = 68,735,509,958.03/423,690.33
  6. Step 6: Final answer
    x = 162,230.54

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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.