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Finding the Fourth Proportional to 354,120.37, 488,671.87 and 192,971.97

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Solution

The fourth proportional to 354,120.37, 488,671.87 and 192,971.97 is: 266,293.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,120.37 : 488,671.87 = 192,971.97 : x
  2. Step 2: Convert to fraction form
    354,120.37/488,671.87 = 192,971.97/x
  3. Step 3: Cross multiply
    354,120.37x = 488,671.87 × 192,971.97
  4. Step 4: Simplify right side
    354,120.37x = 94,299,973,437.48
  5. Step 5: Solve for x
    x = 94,299,973,437.48/354,120.37
  6. Step 6: Final answer
    x = 266,293.56

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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.