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Finding the Fourth Proportional to 367.23, 550.40 and 213.00

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Solution

The fourth proportional to 367.23, 550.40 and 213.00 is: 319.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.23 : 550.40 = 213.00 : x
  2. Step 2: Convert to fraction form
    367.23/550.40 = 213.00/x
  3. Step 3: Cross multiply
    367.23x = 550.40 × 213.00
  4. Step 4: Simplify right side
    367.23x = 117,236.71
  5. Step 5: Solve for x
    x = 117,236.71/367.23
  6. Step 6: Final answer
    x = 319.24

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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.