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Finding the Fourth Proportional to 230,338.42, 345,556.84 and 80,583.60

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Solution

The fourth proportional to 230,338.42, 345,556.84 and 80,583.60 is: 120,892.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,338.42 : 345,556.84 = 80,583.60 : x
  2. Step 2: Convert to fraction form
    230,338.42/345,556.84 = 80,583.60/x
  3. Step 3: Cross multiply
    230,338.42x = 345,556.84 × 80,583.60
  4. Step 4: Simplify right side
    230,338.42x = 27,846,214,171.82
  5. Step 5: Solve for x
    x = 27,846,214,171.82/230,338.42
  6. Step 6: Final answer
    x = 120,892.62

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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.