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Finding the Fourth Proportional to 483.49, 667.21 and 262.43

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Solution

The fourth proportional to 483.49, 667.21 and 262.43 is: 362.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.49 : 667.21 = 262.43 : x
  2. Step 2: Convert to fraction form
    483.49/667.21 = 262.43/x
  3. Step 3: Cross multiply
    483.49x = 667.21 × 262.43
  4. Step 4: Simplify right side
    483.49x = 175,091.27
  5. Step 5: Solve for x
    x = 175,091.27/483.49
  6. Step 6: Final answer
    x = 362.14

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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.