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Finding the Fourth Proportional to 254,181.70, 381,163.20 and 127,773.10

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Solution

The fourth proportional to 254,181.70, 381,163.20 and 127,773.10 is: 191,604.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,181.70 : 381,163.20 = 127,773.10 : x
  2. Step 2: Convert to fraction form
    254,181.70/381,163.20 = 127,773.10/x
  3. Step 3: Cross multiply
    254,181.70x = 381,163.20 × 127,773.10
  4. Step 4: Simplify right side
    254,181.70x = 48,702,403,669.92
  5. Step 5: Solve for x
    x = 48,702,403,669.92/254,181.70
  6. Step 6: Final answer
    x = 191,604.68

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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.