Home / 319,609.20-440,874.60-204,847.02

Finding the Fourth Proportional to 319,609.20, 440,874.60 and 204,847.02

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Solution

The fourth proportional to 319,609.20, 440,874.60 and 204,847.02 is: 282,569.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,609.20 : 440,874.60 = 204,847.02 : x
  2. Step 2: Convert to fraction form
    319,609.20/440,874.60 = 204,847.02/x
  3. Step 3: Cross multiply
    319,609.20x = 440,874.60 × 204,847.02
  4. Step 4: Simplify right side
    319,609.20x = 90,311,848,003.69
  5. Step 5: Solve for x
    x = 90,311,848,003.69/319,609.20
  6. Step 6: Final answer
    x = 282,569.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.