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Finding the Fourth Proportional to 436.70, 658.05 and 361.36

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Solution

The fourth proportional to 436.70, 658.05 and 361.36 is: 544.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.70 : 658.05 = 361.36 : x
  2. Step 2: Convert to fraction form
    436.70/658.05 = 361.36/x
  3. Step 3: Cross multiply
    436.70x = 658.05 × 361.36
  4. Step 4: Simplify right side
    436.70x = 237,791.30
  5. Step 5: Solve for x
    x = 237,791.30/436.70
  6. Step 6: Final answer
    x = 544.52

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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.