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Finding the Fourth Proportional to 339.42, 468.38 and 192.06

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Solution

The fourth proportional to 339.42, 468.38 and 192.06 is: 265.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    339.42 : 468.38 = 192.06 : x
  2. Step 2: Convert to fraction form
    339.42/468.38 = 192.06/x
  3. Step 3: Cross multiply
    339.42x = 468.38 × 192.06
  4. Step 4: Simplify right side
    339.42x = 89,957.06
  5. Step 5: Solve for x
    x = 89,957.06/339.42
  6. Step 6: Final answer
    x = 265.03

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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.