Home / 455,249.16-682,655.52-215,163.24

Finding the Fourth Proportional to 455,249.16, 682,655.52 and 215,163.24

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Solution

The fourth proportional to 455,249.16, 682,655.52 and 215,163.24 is: 322,641.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,249.16 : 682,655.52 = 215,163.24 : x
  2. Step 2: Convert to fraction form
    455,249.16/682,655.52 = 215,163.24/x
  3. Step 3: Cross multiply
    455,249.16x = 682,655.52 × 215,163.24
  4. Step 4: Simplify right side
    455,249.16x = 146,882,373,487.09
  5. Step 5: Solve for x
    x = 146,882,373,487.09/455,249.16
  6. Step 6: Final answer
    x = 322,641.72

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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.