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Finding the Fourth Proportional to 483.99, 668.09 and 327.07

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Solution

The fourth proportional to 483.99, 668.09 and 327.07 is: 451.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.99 : 668.09 = 327.07 : x
  2. Step 2: Convert to fraction form
    483.99/668.09 = 327.07/x
  3. Step 3: Cross multiply
    483.99x = 668.09 × 327.07
  4. Step 4: Simplify right side
    483.99x = 218,512.60
  5. Step 5: Solve for x
    x = 218,512.60/483.99
  6. Step 6: Final answer
    x = 451.48

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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.