Home / 408,885.03-613,327.37-109,357.83

Finding the Fourth Proportional to 408,885.03, 613,327.37 and 109,357.83

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Solution

The fourth proportional to 408,885.03, 613,327.37 and 109,357.83 is: 164,036.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,885.03 : 613,327.37 = 109,357.83 : x
  2. Step 2: Convert to fraction form
    408,885.03/613,327.37 = 109,357.83/x
  3. Step 3: Cross multiply
    408,885.03x = 613,327.37 × 109,357.83
  4. Step 4: Simplify right side
    408,885.03x = 67,072,149,716.02
  5. Step 5: Solve for x
    x = 67,072,149,716.02/408,885.03
  6. Step 6: Final answer
    x = 164,036.70

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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.