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Finding the Fourth Proportional to 262.88, 361.62 and 236.72

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Solution

The fourth proportional to 262.88, 361.62 and 236.72 is: 325.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.88 : 361.62 = 236.72 : x
  2. Step 2: Convert to fraction form
    262.88/361.62 = 236.72/x
  3. Step 3: Cross multiply
    262.88x = 361.62 × 236.72
  4. Step 4: Simplify right side
    262.88x = 85,602.69
  5. Step 5: Solve for x
    x = 85,602.69/262.88
  6. Step 6: Final answer
    x = 325.63

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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.