Home / 209,213.22-313,817.10-51,443.04

Finding the Fourth Proportional to 209,213.22, 313,817.10 and 51,443.04

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Solution

The fourth proportional to 209,213.22, 313,817.10 and 51,443.04 is: 77,163.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,213.22 : 313,817.10 = 51,443.04 : x
  2. Step 2: Convert to fraction form
    209,213.22/313,817.10 = 51,443.04/x
  3. Step 3: Cross multiply
    209,213.22x = 313,817.10 × 51,443.04
  4. Step 4: Simplify right side
    209,213.22x = 16,143,705,627.98
  5. Step 5: Solve for x
    x = 16,143,705,627.98/209,213.22
  6. Step 6: Final answer
    x = 77,163.89

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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.