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Finding the Fourth Proportional to 262.77, 396.02 and 247.38

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Solution

The fourth proportional to 262.77, 396.02 and 247.38 is: 372.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.77 : 396.02 = 247.38 : x
  2. Step 2: Convert to fraction form
    262.77/396.02 = 247.38/x
  3. Step 3: Cross multiply
    262.77x = 396.02 × 247.38
  4. Step 4: Simplify right side
    262.77x = 97,967.43
  5. Step 5: Solve for x
    x = 97,967.43/262.77
  6. Step 6: Final answer
    x = 372.83

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.