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Finding the Fourth Proportional to 441.12, 607.80 and 324.48

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Solution

The fourth proportional to 441.12, 607.80 and 324.48 is: 447.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.12 : 607.80 = 324.48 : x
  2. Step 2: Convert to fraction form
    441.12/607.80 = 324.48/x
  3. Step 3: Cross multiply
    441.12x = 607.80 × 324.48
  4. Step 4: Simplify right side
    441.12x = 197,218.94
  5. Step 5: Solve for x
    x = 197,218.94/441.12
  6. Step 6: Final answer
    x = 447.09

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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.