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Finding the Fourth Proportional to 262,201.80, 393,399.90 and 252,481.80

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Solution

The fourth proportional to 262,201.80, 393,399.90 and 252,481.80 is: 378,816.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,201.80 : 393,399.90 = 252,481.80 : x
  2. Step 2: Convert to fraction form
    262,201.80/393,399.90 = 252,481.80/x
  3. Step 3: Cross multiply
    262,201.80x = 393,399.90 × 252,481.80
  4. Step 4: Simplify right side
    262,201.80x = 99,326,314,871.82
  5. Step 5: Solve for x
    x = 99,326,314,871.82/262,201.80
  6. Step 6: Final answer
    x = 378,816.30

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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.