Home / 216,588.31-324,249.11-126,355.12

Finding the Fourth Proportional to 216,588.31, 324,249.11 and 126,355.12

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Solution

The fourth proportional to 216,588.31, 324,249.11 and 126,355.12 is: 189,163.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,588.31 : 324,249.11 = 126,355.12 : x
  2. Step 2: Convert to fraction form
    216,588.31/324,249.11 = 126,355.12/x
  3. Step 3: Cross multiply
    216,588.31x = 324,249.11 × 126,355.12
  4. Step 4: Simplify right side
    216,588.31x = 40,970,534,235.38
  5. Step 5: Solve for x
    x = 40,970,534,235.38/216,588.31
  6. Step 6: Final answer
    x = 189,163.19

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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.