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Finding the Fourth Proportional to 444,619.20, 666,475.20 and 219,633.60

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Solution

The fourth proportional to 444,619.20, 666,475.20 and 219,633.60 is: 329,226.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,619.20 : 666,475.20 = 219,633.60 : x
  2. Step 2: Convert to fraction form
    444,619.20/666,475.20 = 219,633.60/x
  3. Step 3: Cross multiply
    444,619.20x = 666,475.20 × 219,633.60
  4. Step 4: Simplify right side
    444,619.20x = 146,380,347,486.72
  5. Step 5: Solve for x
    x = 146,380,347,486.72/444,619.20
  6. Step 6: Final answer
    x = 329,226.33

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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.