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Finding the Fourth Proportional to 547,447.89, 821,163.33 and 168,373.56

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Solution

The fourth proportional to 547,447.89, 821,163.33 and 168,373.56 is: 252,557.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,447.89 : 821,163.33 = 168,373.56 : x
  2. Step 2: Convert to fraction form
    547,447.89/821,163.33 = 168,373.56/x
  3. Step 3: Cross multiply
    547,447.89x = 821,163.33 × 168,373.56
  4. Step 4: Simplify right side
    547,447.89x = 138,262,193,213.56
  5. Step 5: Solve for x
    x = 138,262,193,213.56/547,447.89
  6. Step 6: Final answer
    x = 252,557.72

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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.