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Finding the Fourth Proportional to 559.37, 771.73 and 326.49

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Solution

The fourth proportional to 559.37, 771.73 and 326.49 is: 450.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.37 : 771.73 = 326.49 : x
  2. Step 2: Convert to fraction form
    559.37/771.73 = 326.49/x
  3. Step 3: Cross multiply
    559.37x = 771.73 × 326.49
  4. Step 4: Simplify right side
    559.37x = 251,964.59
  5. Step 5: Solve for x
    x = 251,964.59/559.37
  6. Step 6: Final answer
    x = 450.45

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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.