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Finding the Fourth Proportional to 408,107.62, 612,162.87 and 123,800.59

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Solution

The fourth proportional to 408,107.62, 612,162.87 and 123,800.59 is: 185,701.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,107.62 : 612,162.87 = 123,800.59 : x
  2. Step 2: Convert to fraction form
    408,107.62/612,162.87 = 123,800.59/x
  3. Step 3: Cross multiply
    408,107.62x = 612,162.87 × 123,800.59
  4. Step 4: Simplify right side
    408,107.62x = 75,786,124,482.09
  5. Step 5: Solve for x
    x = 75,786,124,482.09/408,107.62
  6. Step 6: Final answer
    x = 185,701.32

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1.5x scale

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.