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Finding the Fourth Proportional to 391,799.22, 587,268.98 and 202,273.80

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Solution

The fourth proportional to 391,799.22, 587,268.98 and 202,273.80 is: 303,188.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,799.22 : 587,268.98 = 202,273.80 : x
  2. Step 2: Convert to fraction form
    391,799.22/587,268.98 = 202,273.80/x
  3. Step 3: Cross multiply
    391,799.22x = 587,268.98 × 202,273.80
  4. Step 4: Simplify right side
    391,799.22x = 118,789,128,206.72
  5. Step 5: Solve for x
    x = 118,789,128,206.72/391,799.22
  6. Step 6: Final answer
    x = 303,188.78

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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.