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Finding the Fourth Proportional to 348.69, 518.93 and 335.73

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Solution

The fourth proportional to 348.69, 518.93 and 335.73 is: 499.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.69 : 518.93 = 335.73 : x
  2. Step 2: Convert to fraction form
    348.69/518.93 = 335.73/x
  3. Step 3: Cross multiply
    348.69x = 518.93 × 335.73
  4. Step 4: Simplify right side
    348.69x = 174,220.37
  5. Step 5: Solve for x
    x = 174,220.37/348.69
  6. Step 6: Final answer
    x = 499.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.