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Finding the Fourth Proportional to 573.21, 859.91 and 226.53

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Solution

The fourth proportional to 573.21, 859.91 and 226.53 is: 339.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.21 : 859.91 = 226.53 : x
  2. Step 2: Convert to fraction form
    573.21/859.91 = 226.53/x
  3. Step 3: Cross multiply
    573.21x = 859.91 × 226.53
  4. Step 4: Simplify right side
    573.21x = 194,794.28
  5. Step 5: Solve for x
    x = 194,794.28/573.21
  6. Step 6: Final answer
    x = 339.83

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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.