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Finding the Fourth Proportional to 262.14, 361.92 and 188.40

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Solution

The fourth proportional to 262.14, 361.92 and 188.40 is: 260.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.14 : 361.92 = 188.40 : x
  2. Step 2: Convert to fraction form
    262.14/361.92 = 188.40/x
  3. Step 3: Cross multiply
    262.14x = 361.92 × 188.40
  4. Step 4: Simplify right side
    262.14x = 68,185.73
  5. Step 5: Solve for x
    x = 68,185.73/262.14
  6. Step 6: Final answer
    x = 260.11

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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.