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Finding the Fourth Proportional to 364.82, 547.23 and 121.38

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Solution

The fourth proportional to 364.82, 547.23 and 121.38 is: 182.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.82 : 547.23 = 121.38 : x
  2. Step 2: Convert to fraction form
    364.82/547.23 = 121.38/x
  3. Step 3: Cross multiply
    364.82x = 547.23 × 121.38
  4. Step 4: Simplify right side
    364.82x = 66,422.78
  5. Step 5: Solve for x
    x = 66,422.78/364.82
  6. Step 6: Final answer
    x = 182.07

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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.