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Finding the Fourth Proportional to 252.33, 376.21 and 245.91

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Solution

The fourth proportional to 252.33, 376.21 and 245.91 is: 366.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.33 : 376.21 = 245.91 : x
  2. Step 2: Convert to fraction form
    252.33/376.21 = 245.91/x
  3. Step 3: Cross multiply
    252.33x = 376.21 × 245.91
  4. Step 4: Simplify right side
    252.33x = 92,513.80
  5. Step 5: Solve for x
    x = 92,513.80/252.33
  6. Step 6: Final answer
    x = 366.64

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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.