Home / 216,550.23-324,860.38-66,755.49

Finding the Fourth Proportional to 216,550.23, 324,860.38 and 66,755.49

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Solution

The fourth proportional to 216,550.23, 324,860.38 and 66,755.49 is: 100,144.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,550.23 : 324,860.38 = 66,755.49 : x
  2. Step 2: Convert to fraction form
    216,550.23/324,860.38 = 66,755.49/x
  3. Step 3: Cross multiply
    216,550.23x = 324,860.38 × 66,755.49
  4. Step 4: Simplify right side
    216,550.23x = 21,686,213,848.49
  5. Step 5: Solve for x
    x = 21,686,213,848.49/216,550.23
  6. Step 6: Final answer
    x = 100,144.04

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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.