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Finding the Fourth Proportional to 318,163.52, 477,143.85 and 104,891.68

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Solution

The fourth proportional to 318,163.52, 477,143.85 and 104,891.68 is: 157,304.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,163.52 : 477,143.85 = 104,891.68 : x
  2. Step 2: Convert to fraction form
    318,163.52/477,143.85 = 104,891.68/x
  3. Step 3: Cross multiply
    318,163.52x = 477,143.85 × 104,891.68
  4. Step 4: Simplify right side
    318,163.52x = 50,048,420,028.17
  5. Step 5: Solve for x
    x = 50,048,420,028.17/318,163.52
  6. Step 6: Final answer
    x = 157,304.08

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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.