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Finding the Fourth Proportional to 423,693.59, 635,540.18 and 108,150.39

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Solution

The fourth proportional to 423,693.59, 635,540.18 and 108,150.39 is: 162,225.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,693.59 : 635,540.18 = 108,150.39 : x
  2. Step 2: Convert to fraction form
    423,693.59/635,540.18 = 108,150.39/x
  3. Step 3: Cross multiply
    423,693.59x = 635,540.18 × 108,150.39
  4. Step 4: Simplify right side
    423,693.59x = 68,733,917,786.92
  5. Step 5: Solve for x
    x = 68,733,917,786.92/423,693.59
  6. Step 6: Final answer
    x = 162,225.53

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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.