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Finding the Fourth Proportional to 350.26, 486.70 and 346.46

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Solution

The fourth proportional to 350.26, 486.70 and 346.46 is: 481.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.26 : 486.70 = 346.46 : x
  2. Step 2: Convert to fraction form
    350.26/486.70 = 346.46/x
  3. Step 3: Cross multiply
    350.26x = 486.70 × 346.46
  4. Step 4: Simplify right side
    350.26x = 168,622.08
  5. Step 5: Solve for x
    x = 168,622.08/350.26
  6. Step 6: Final answer
    x = 481.42

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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.