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Finding the Fourth Proportional to 573.09, 791.05 and 366.09

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Solution

The fourth proportional to 573.09, 791.05 and 366.09 is: 505.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.09 : 791.05 = 366.09 : x
  2. Step 2: Convert to fraction form
    573.09/791.05 = 366.09/x
  3. Step 3: Cross multiply
    573.09x = 791.05 × 366.09
  4. Step 4: Simplify right side
    573.09x = 289,598.23
  5. Step 5: Solve for x
    x = 289,598.23/573.09
  6. Step 6: Final answer
    x = 505.32

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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.