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Finding the Fourth Proportional to 408,124.96, 612,186.54 and 108,605.56

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Solution

The fourth proportional to 408,124.96, 612,186.54 and 108,605.56 is: 162,908.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,124.96 : 612,186.54 = 108,605.56 : x
  2. Step 2: Convert to fraction form
    408,124.96/612,186.54 = 108,605.56/x
  3. Step 3: Cross multiply
    408,124.96x = 612,186.54 × 108,605.56
  4. Step 4: Simplify right side
    408,124.96x = 66,486,862,001.16
  5. Step 5: Solve for x
    x = 66,486,862,001.16/408,124.96
  6. Step 6: Final answer
    x = 162,908.10

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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.