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Finding the Fourth Proportional to 254,606.35, 381,327.74 and 121,579.78

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Solution

The fourth proportional to 254,606.35, 381,327.74 and 121,579.78 is: 182,091.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,606.35 : 381,327.74 = 121,579.78 : x
  2. Step 2: Convert to fraction form
    254,606.35/381,327.74 = 121,579.78/x
  3. Step 3: Cross multiply
    254,606.35x = 381,327.74 × 121,579.78
  4. Step 4: Simplify right side
    254,606.35x = 46,361,740,222.56
  5. Step 5: Solve for x
    x = 46,361,740,222.56/254,606.35
  6. Step 6: Final answer
    x = 182,091.85

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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.