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Finding the Fourth Proportional to 443.44, 612 and 268.88

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Solution

The fourth proportional to 443.44, 612 and 268.88 is: 371.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    443.44 : 612 = 268.88 : x
  2. Step 2: Convert to fraction form
    443.44/612 = 268.88/x
  3. Step 3: Cross multiply
    443.44x = 612 × 268.88
  4. Step 4: Simplify right side
    443.44x = 164,554.56
  5. Step 5: Solve for x
    x = 164,554.56/443.44
  6. Step 6: Final answer
    x = 371.09

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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.