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Finding the Fourth Proportional to 322.44, 481.62 and 303.72

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Solution

The fourth proportional to 322.44, 481.62 and 303.72 is: 453.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    322.44 : 481.62 = 303.72 : x
  2. Step 2: Convert to fraction form
    322.44/481.62 = 303.72/x
  3. Step 3: Cross multiply
    322.44x = 481.62 × 303.72
  4. Step 4: Simplify right side
    322.44x = 146,277.63
  5. Step 5: Solve for x
    x = 146,277.63/322.44
  6. Step 6: Final answer
    x = 453.66

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.