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Finding the Fourth Proportional to 456.05, 629.66 and 350.96

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Solution

The fourth proportional to 456.05, 629.66 and 350.96 is: 484.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    456.05 : 629.66 = 350.96 : x
  2. Step 2: Convert to fraction form
    456.05/629.66 = 350.96/x
  3. Step 3: Cross multiply
    456.05x = 629.66 × 350.96
  4. Step 4: Simplify right side
    456.05x = 220,980.57
  5. Step 5: Solve for x
    x = 220,980.57/456.05
  6. Step 6: Final answer
    x = 484.56

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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.