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Finding the Fourth Proportional to 339.93, 468.99 and 192.54

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Solution

The fourth proportional to 339.93, 468.99 and 192.54 is: 265.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    339.93 : 468.99 = 192.54 : x
  2. Step 2: Convert to fraction form
    339.93/468.99 = 192.54/x
  3. Step 3: Cross multiply
    339.93x = 468.99 × 192.54
  4. Step 4: Simplify right side
    339.93x = 90,301.09
  5. Step 5: Solve for x
    x = 90,301.09/339.93
  6. Step 6: Final answer
    x = 265.65

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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.