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Finding the Fourth Proportional to 490.27, 675.60 and 350.14

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Solution

The fourth proportional to 490.27, 675.60 and 350.14 is: 482.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    490.27 : 675.60 = 350.14 : x
  2. Step 2: Convert to fraction form
    490.27/675.60 = 350.14/x
  3. Step 3: Cross multiply
    490.27x = 675.60 × 350.14
  4. Step 4: Simplify right side
    490.27x = 236,554.58
  5. Step 5: Solve for x
    x = 236,554.58/490.27
  6. Step 6: Final answer
    x = 482.50

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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.