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Finding the Fourth Proportional to 375.75, 515.73 and 344.58

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Solution

The fourth proportional to 375.75, 515.73 and 344.58 is: 472.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.75 : 515.73 = 344.58 : x
  2. Step 2: Convert to fraction form
    375.75/515.73 = 344.58/x
  3. Step 3: Cross multiply
    375.75x = 515.73 × 344.58
  4. Step 4: Simplify right side
    375.75x = 177,710.24
  5. Step 5: Solve for x
    x = 177,710.24/375.75
  6. Step 6: Final answer
    x = 472.95

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.