Home / 254,448.45-381,091.37-121,422.15

Finding the Fourth Proportional to 254,448.45, 381,091.37 and 121,422.15

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Solution

The fourth proportional to 254,448.45, 381,091.37 and 121,422.15 is: 181,855.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,448.45 : 381,091.37 = 121,422.15 : x
  2. Step 2: Convert to fraction form
    254,448.45/381,091.37 = 121,422.15/x
  3. Step 3: Cross multiply
    254,448.45x = 381,091.37 × 121,422.15
  4. Step 4: Simplify right side
    254,448.45x = 46,272,932,884.73
  5. Step 5: Solve for x
    x = 46,272,932,884.73/254,448.45
  6. Step 6: Final answer
    x = 181,855.83

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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.