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Finding the Fourth Proportional to 367.23, 549.63 and 212.94

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Solution

The fourth proportional to 367.23, 549.63 and 212.94 is: 318.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.23 : 549.63 = 212.94 : x
  2. Step 2: Convert to fraction form
    367.23/549.63 = 212.94/x
  3. Step 3: Cross multiply
    367.23x = 549.63 × 212.94
  4. Step 4: Simplify right side
    367.23x = 117,038.21
  5. Step 5: Solve for x
    x = 117,038.21/367.23
  6. Step 6: Final answer
    x = 318.71

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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.