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Finding the Fourth Proportional to 325.77, 485.54 and 323.34

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Solution

The fourth proportional to 325.77, 485.54 and 323.34 is: 481.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.77 : 485.54 = 323.34 : x
  2. Step 2: Convert to fraction form
    325.77/485.54 = 323.34/x
  3. Step 3: Cross multiply
    325.77x = 485.54 × 323.34
  4. Step 4: Simplify right side
    325.77x = 156,992.89
  5. Step 5: Solve for x
    x = 156,992.89/325.77
  6. Step 6: Final answer
    x = 481.91

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.