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Finding the Fourth Proportional to 403,163.88, 605,119.49 and 203,624.40

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Solution

The fourth proportional to 403,163.88, 605,119.49 and 203,624.40 is: 305,625.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,163.88 : 605,119.49 = 203,624.40 : x
  2. Step 2: Convert to fraction form
    403,163.88/605,119.49 = 203,624.40/x
  3. Step 3: Cross multiply
    403,163.88x = 605,119.49 × 203,624.40
  4. Step 4: Simplify right side
    403,163.88x = 123,217,093,079.56
  5. Step 5: Solve for x
    x = 123,217,093,079.56/403,163.88
  6. Step 6: Final answer
    x = 305,625.33

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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.