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Finding the Fourth Proportional to 323.01, 446.99 and 279.27

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Solution

The fourth proportional to 323.01, 446.99 and 279.27 is: 386.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    323.01 : 446.99 = 279.27 : x
  2. Step 2: Convert to fraction form
    323.01/446.99 = 279.27/x
  3. Step 3: Cross multiply
    323.01x = 446.99 × 279.27
  4. Step 4: Simplify right side
    323.01x = 124,829.50
  5. Step 5: Solve for x
    x = 124,829.50/323.01
  6. Step 6: Final answer
    x = 386.46

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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.