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Finding the Fourth Proportional to 201,231.56, 301,907.64 and 81,226.73

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Solution

The fourth proportional to 201,231.56, 301,907.64 and 81,226.73 is: 121,864.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,231.56 : 301,907.64 = 81,226.73 : x
  2. Step 2: Convert to fraction form
    201,231.56/301,907.64 = 81,226.73/x
  3. Step 3: Cross multiply
    201,231.56x = 301,907.64 × 81,226.73
  4. Step 4: Simplify right side
    201,231.56x = 24,522,970,359.22
  5. Step 5: Solve for x
    x = 24,522,970,359.22/201,231.56
  6. Step 6: Final answer
    x = 121,864.43

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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.