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Finding the Fourth Proportional to 481.80, 668.73 and 469.92

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Solution

The fourth proportional to 481.80, 668.73 and 469.92 is: 652.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.80 : 668.73 = 469.92 : x
  2. Step 2: Convert to fraction form
    481.80/668.73 = 469.92/x
  3. Step 3: Cross multiply
    481.80x = 668.73 × 469.92
  4. Step 4: Simplify right side
    481.80x = 314,249.60
  5. Step 5: Solve for x
    x = 314,249.60/481.80
  6. Step 6: Final answer
    x = 652.24

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.