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Finding the Fourth Proportional to 262.18, 361.71 and 233.78

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Solution

The fourth proportional to 262.18, 361.71 and 233.78 is: 322.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.18 : 361.71 = 233.78 : x
  2. Step 2: Convert to fraction form
    262.18/361.71 = 233.78/x
  3. Step 3: Cross multiply
    262.18x = 361.71 × 233.78
  4. Step 4: Simplify right side
    262.18x = 84,559.39
  5. Step 5: Solve for x
    x = 84,559.39/262.18
  6. Step 6: Final answer
    x = 322.52

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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.