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Finding the Fourth Proportional to 322,671.87, 483,996.87 and 122,985

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Solution

The fourth proportional to 322,671.87, 483,996.87 and 122,985 is: 184,473.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,671.87 : 483,996.87 = 122,985 : x
  2. Step 2: Convert to fraction form
    322,671.87/483,996.87 = 122,985/x
  3. Step 3: Cross multiply
    322,671.87x = 483,996.87 × 122,985
  4. Step 4: Simplify right side
    322,671.87x = 59,524,355,056.95
  5. Step 5: Solve for x
    x = 59,524,355,056.95/322,671.87
  6. Step 6: Final answer
    x = 184,473.33

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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.