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Finding the Fourth Proportional to 339.52, 468.48 and 192.12

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Solution

The fourth proportional to 339.52, 468.48 and 192.12 is: 265.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    339.52 : 468.48 = 192.12 : x
  2. Step 2: Convert to fraction form
    339.52/468.48 = 192.12/x
  3. Step 3: Cross multiply
    339.52x = 468.48 × 192.12
  4. Step 4: Simplify right side
    339.52x = 90,004.38
  5. Step 5: Solve for x
    x = 90,004.38/339.52
  6. Step 6: Final answer
    x = 265.09

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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.