Home / 211,634.20-317,105.70-181,912.60

Finding the Fourth Proportional to 211,634.20, 317,105.70 and 181,912.60

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Solution

The fourth proportional to 211,634.20, 317,105.70 and 181,912.60 is: 272,571.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,634.20 : 317,105.70 = 181,912.60 : x
  2. Step 2: Convert to fraction form
    211,634.20/317,105.70 = 181,912.60/x
  3. Step 3: Cross multiply
    211,634.20x = 317,105.70 × 181,912.60
  4. Step 4: Simplify right side
    211,634.20x = 57,685,522,361.82
  5. Step 5: Solve for x
    x = 57,685,522,361.82/211,634.20
  6. Step 6: Final answer
    x = 272,571.84

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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.