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Finding the Fourth Proportional to 373.70, 518.19 and 361.41

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Solution

The fourth proportional to 373.70, 518.19 and 361.41 is: 501.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.70 : 518.19 = 361.41 : x
  2. Step 2: Convert to fraction form
    373.70/518.19 = 361.41/x
  3. Step 3: Cross multiply
    373.70x = 518.19 × 361.41
  4. Step 4: Simplify right side
    373.70x = 187,279.05
  5. Step 5: Solve for x
    x = 187,279.05/373.70
  6. Step 6: Final answer
    x = 501.15

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.