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Finding the Fourth Proportional to 354,168.37, 488,738.12 and 193,019.96

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Solution

The fourth proportional to 354,168.37, 488,738.12 and 193,019.96 is: 266,359.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,168.37 : 488,738.12 = 193,019.96 : x
  2. Step 2: Convert to fraction form
    354,168.37/488,738.12 = 193,019.96/x
  3. Step 3: Cross multiply
    354,168.37x = 488,738.12 × 193,019.96
  4. Step 4: Simplify right side
    354,168.37x = 94,336,212,372.88
  5. Step 5: Solve for x
    x = 94,336,212,372.88/354,168.37
  6. Step 6: Final answer
    x = 266,359.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.