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Finding the Fourth Proportional to 444.11, 612.53 and 326.03

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Solution

The fourth proportional to 444.11, 612.53 and 326.03 is: 449.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.11 : 612.53 = 326.03 : x
  2. Step 2: Convert to fraction form
    444.11/612.53 = 326.03/x
  3. Step 3: Cross multiply
    444.11x = 612.53 × 326.03
  4. Step 4: Simplify right side
    444.11x = 199,698.46
  5. Step 5: Solve for x
    x = 199,698.46/444.11
  6. Step 6: Final answer
    x = 449.66

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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.