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Finding the Fourth Proportional to 323.55, 446.02 and 279.10

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Solution

The fourth proportional to 323.55, 446.02 and 279.10 is: 384.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    323.55 : 446.02 = 279.10 : x
  2. Step 2: Convert to fraction form
    323.55/446.02 = 279.10/x
  3. Step 3: Cross multiply
    323.55x = 446.02 × 279.10
  4. Step 4: Simplify right side
    323.55x = 124,484.18
  5. Step 5: Solve for x
    x = 124,484.18/323.55
  6. Step 6: Final answer
    x = 384.74

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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.