Home / 211,919.33-317,879.15-54,147.94

Finding the Fourth Proportional to 211,919.33, 317,879.15 and 54,147.94

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Solution

The fourth proportional to 211,919.33, 317,879.15 and 54,147.94 is: 81,221.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,919.33 : 317,879.15 = 54,147.94 : x
  2. Step 2: Convert to fraction form
    211,919.33/317,879.15 = 54,147.94/x
  3. Step 3: Cross multiply
    211,919.33x = 317,879.15 × 54,147.94
  4. Step 4: Simplify right side
    211,919.33x = 17,212,500,076.01
  5. Step 5: Solve for x
    x = 17,212,500,076.01/211,919.33
  6. Step 6: Final answer
    x = 81,221.94

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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.