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Finding the Fourth Proportional to 339.36, 467.64 and 235.68

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Solution

The fourth proportional to 339.36, 467.64 and 235.68 is: 324.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    339.36 : 467.64 = 235.68 : x
  2. Step 2: Convert to fraction form
    339.36/467.64 = 235.68/x
  3. Step 3: Cross multiply
    339.36x = 467.64 × 235.68
  4. Step 4: Simplify right side
    339.36x = 110,213.40
  5. Step 5: Solve for x
    x = 110,213.40/339.36
  6. Step 6: Final answer
    x = 324.77

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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.