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Finding the Fourth Proportional to 375.44, 518.04 and 323.60

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Solution

The fourth proportional to 375.44, 518.04 and 323.60 is: 446.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.44 : 518.04 = 323.60 : x
  2. Step 2: Convert to fraction form
    375.44/518.04 = 323.60/x
  3. Step 3: Cross multiply
    375.44x = 518.04 × 323.60
  4. Step 4: Simplify right side
    375.44x = 167,637.74
  5. Step 5: Solve for x
    x = 167,637.74/375.44
  6. Step 6: Final answer
    x = 446.51

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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.