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Finding the Fourth Proportional to 409.58, 613.15 and 376.37

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Solution

The fourth proportional to 409.58, 613.15 and 376.37 is: 563.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    409.58 : 613.15 = 376.37 : x
  2. Step 2: Convert to fraction form
    409.58/613.15 = 376.37/x
  3. Step 3: Cross multiply
    409.58x = 613.15 × 376.37
  4. Step 4: Simplify right side
    409.58x = 230,771.27
  5. Step 5: Solve for x
    x = 230,771.27/409.58
  6. Step 6: Final answer
    x = 563.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.