Home / 215,128.48-322,650.18-204,459.96

Finding the Fourth Proportional to 215,128.48, 322,650.18 and 204,459.96

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Solution

The fourth proportional to 215,128.48, 322,650.18 and 204,459.96 is: 306,649.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,128.48 : 322,650.18 = 204,459.96 : x
  2. Step 2: Convert to fraction form
    215,128.48/322,650.18 = 204,459.96/x
  3. Step 3: Cross multiply
    215,128.48x = 322,650.18 × 204,459.96
  4. Step 4: Simplify right side
    215,128.48x = 65,969,042,896.79
  5. Step 5: Solve for x
    x = 65,969,042,896.79/215,128.48
  6. Step 6: Final answer
    x = 306,649.51

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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.