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Finding the Fourth Proportional to 375.66, 518.09 and 301.95

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Solution

The fourth proportional to 375.66, 518.09 and 301.95 is: 416.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.66 : 518.09 = 301.95 : x
  2. Step 2: Convert to fraction form
    375.66/518.09 = 301.95/x
  3. Step 3: Cross multiply
    375.66x = 518.09 × 301.95
  4. Step 4: Simplify right side
    375.66x = 156,435.77
  5. Step 5: Solve for x
    x = 156,435.77/375.66
  6. Step 6: Final answer
    x = 416.43

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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.