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Finding the Fourth Proportional to 408,125.96, 612,188.04 and 108,606.56

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Solution

The fourth proportional to 408,125.96, 612,188.04 and 108,606.56 is: 162,909.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,125.96 : 612,188.04 = 108,606.56 : x
  2. Step 2: Convert to fraction form
    408,125.96/612,188.04 = 108,606.56/x
  3. Step 3: Cross multiply
    408,125.96x = 612,188.04 × 108,606.56
  4. Step 4: Simplify right side
    408,125.96x = 66,487,637,097.54
  5. Step 5: Solve for x
    x = 66,487,637,097.54/408,125.96
  6. Step 6: Final answer
    x = 162,909.60

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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.