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Finding the Fourth Proportional to 350.33, 522.95 and 321.44

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Solution

The fourth proportional to 350.33, 522.95 and 321.44 is: 479.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.33 : 522.95 = 321.44 : x
  2. Step 2: Convert to fraction form
    350.33/522.95 = 321.44/x
  3. Step 3: Cross multiply
    350.33x = 522.95 × 321.44
  4. Step 4: Simplify right side
    350.33x = 168,097.05
  5. Step 5: Solve for x
    x = 168,097.05/350.33
  6. Step 6: Final answer
    x = 479.82

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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.