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Finding the Fourth Proportional to 320.63, 481.52 and 296.23

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Solution

The fourth proportional to 320.63, 481.52 and 296.23 is: 444.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    320.63 : 481.52 = 296.23 : x
  2. Step 2: Convert to fraction form
    320.63/481.52 = 296.23/x
  3. Step 3: Cross multiply
    320.63x = 481.52 × 296.23
  4. Step 4: Simplify right side
    320.63x = 142,640.21
  5. Step 5: Solve for x
    x = 142,640.21/320.63
  6. Step 6: Final answer
    x = 444.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.