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Finding the Fourth Proportional to 203,479, 305,262.24 and 68,556.48

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Solution

The fourth proportional to 203,479, 305,262.24 and 68,556.48 is: 102,849.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,479 : 305,262.24 = 68,556.48 : x
  2. Step 2: Convert to fraction form
    203,479/305,262.24 = 68,556.48/x
  3. Step 3: Cross multiply
    203,479x = 305,262.24 × 68,556.48
  4. Step 4: Simplify right side
    203,479x = 20,927,704,651.32
  5. Step 5: Solve for x
    x = 20,927,704,651.32/203,479
  6. Step 6: Final answer
    x = 102,849.46

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1.5x scale

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.