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Finding the Fourth Proportional to 444,998.88, 667,647.36 and 145,493.28

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Solution

The fourth proportional to 444,998.88, 667,647.36 and 145,493.28 is: 218,288.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,998.88 : 667,647.36 = 145,493.28 : x
  2. Step 2: Convert to fraction form
    444,998.88/667,647.36 = 145,493.28/x
  3. Step 3: Cross multiply
    444,998.88x = 667,647.36 × 145,493.28
  4. Step 4: Simplify right side
    444,998.88x = 97,138,204,289.74
  5. Step 5: Solve for x
    x = 97,138,204,289.74/444,998.88
  6. Step 6: Final answer
    x = 218,288.65

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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.