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Finding the Fourth Proportional to 209,027.80, 313,311.30 and 115,600.60

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Solution

The fourth proportional to 209,027.80, 313,311.30 and 115,600.60 is: 173,273.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,027.80 : 313,311.30 = 115,600.60 : x
  2. Step 2: Convert to fraction form
    209,027.80/313,311.30 = 115,600.60/x
  3. Step 3: Cross multiply
    209,027.80x = 313,311.30 × 115,600.60
  4. Step 4: Simplify right side
    209,027.80x = 36,218,974,266.78
  5. Step 5: Solve for x
    x = 36,218,974,266.78/209,027.80
  6. Step 6: Final answer
    x = 173,273.48

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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.