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Finding the Fourth Proportional to 350.00, 482.75 and 225.70

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Solution

The fourth proportional to 350.00, 482.75 and 225.70 is: 311.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.00 : 482.75 = 225.70 : x
  2. Step 2: Convert to fraction form
    350.00/482.75 = 225.70/x
  3. Step 3: Cross multiply
    350.00x = 482.75 × 225.70
  4. Step 4: Simplify right side
    350.00x = 108,958.54
  5. Step 5: Solve for x
    x = 108,958.54/350.00
  6. Step 6: Final answer
    x = 311.31

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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.