Home / 213,584.46-320,218.50-129,324.81

Finding the Fourth Proportional to 213,584.46, 320,218.50 and 129,324.81

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Solution

The fourth proportional to 213,584.46, 320,218.50 and 129,324.81 is: 193,891.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,584.46 : 320,218.50 = 129,324.81 : x
  2. Step 2: Convert to fraction form
    213,584.46/320,218.50 = 129,324.81/x
  3. Step 3: Cross multiply
    213,584.46x = 320,218.50 × 129,324.81
  4. Step 4: Simplify right side
    213,584.46x = 41,412,196,670.99
  5. Step 5: Solve for x
    x = 41,412,196,670.99/213,584.46
  6. Step 6: Final answer
    x = 193,891.43

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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.