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Finding the Fourth Proportional to 408,097.63, 612,147.87 and 123,790.63

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Solution

The fourth proportional to 408,097.63, 612,147.87 and 123,790.63 is: 185,686.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,097.63 : 612,147.87 = 123,790.63 : x
  2. Step 2: Convert to fraction form
    408,097.63/612,147.87 = 123,790.63/x
  3. Step 3: Cross multiply
    408,097.63x = 612,147.87 × 123,790.63
  4. Step 4: Simplify right side
    408,097.63x = 75,778,169,923.79
  5. Step 5: Solve for x
    x = 75,778,169,923.79/408,097.63
  6. Step 6: Final answer
    x = 185,686.38

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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.