Home / 216,418.05-324,661.97-66,658.29

Finding the Fourth Proportional to 216,418.05, 324,661.97 and 66,658.29

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Solution

The fourth proportional to 216,418.05, 324,661.97 and 66,658.29 is: 99,998.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,418.05 : 324,661.97 = 66,658.29 : x
  2. Step 2: Convert to fraction form
    216,418.05/324,661.97 = 66,658.29/x
  3. Step 3: Cross multiply
    216,418.05x = 324,661.97 × 66,658.29
  4. Step 4: Simplify right side
    216,418.05x = 21,641,412,523.62
  5. Step 5: Solve for x
    x = 21,641,412,523.62/216,418.05
  6. Step 6: Final answer
    x = 99,998.19

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1.5x scale

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.