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Finding the Fourth Proportional to 361.98, 499.59 and 346.41

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Solution

The fourth proportional to 361.98, 499.59 and 346.41 is: 478.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.98 : 499.59 = 346.41 : x
  2. Step 2: Convert to fraction form
    361.98/499.59 = 346.41/x
  3. Step 3: Cross multiply
    361.98x = 499.59 × 346.41
  4. Step 4: Simplify right side
    361.98x = 173,062.97
  5. Step 5: Solve for x
    x = 173,062.97/361.98
  6. Step 6: Final answer
    x = 478.10

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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.