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Finding the Fourth Proportional to 367,279.20, 550,918.80 and 272,800.80

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Solution

The fourth proportional to 367,279.20, 550,918.80 and 272,800.80 is: 409,201.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,279.20 : 550,918.80 = 272,800.80 : x
  2. Step 2: Convert to fraction form
    367,279.20/550,918.80 = 272,800.80/x
  3. Step 3: Cross multiply
    367,279.20x = 550,918.80 × 272,800.80
  4. Step 4: Simplify right side
    367,279.20x = 150,291,089,375.04
  5. Step 5: Solve for x
    x = 150,291,089,375.04/367,279.20
  6. Step 6: Final answer
    x = 409,201.20

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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.