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Finding the Fourth Proportional to 481.83, 664.52 and 307.23

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Solution

The fourth proportional to 481.83, 664.52 and 307.23 is: 423.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.83 : 664.52 = 307.23 : x
  2. Step 2: Convert to fraction form
    481.83/664.52 = 307.23/x
  3. Step 3: Cross multiply
    481.83x = 664.52 × 307.23
  4. Step 4: Simplify right side
    481.83x = 204,158.94
  5. Step 5: Solve for x
    x = 204,158.94/481.83
  6. Step 6: Final answer
    x = 423.72

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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.