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Finding the Fourth Proportional to 373.68, 518.16 and 361.38

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Solution

The fourth proportional to 373.68, 518.16 and 361.38 is: 501.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.68 : 518.16 = 361.38 : x
  2. Step 2: Convert to fraction form
    373.68/518.16 = 361.38/x
  3. Step 3: Cross multiply
    373.68x = 518.16 × 361.38
  4. Step 4: Simplify right side
    373.68x = 187,252.66
  5. Step 5: Solve for x
    x = 187,252.66/373.68
  6. Step 6: Final answer
    x = 501.10

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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.