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Finding the Fourth Proportional to 339.17, 467.92 and 207.95

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Solution

The fourth proportional to 339.17, 467.92 and 207.95 is: 286.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    339.17 : 467.92 = 207.95 : x
  2. Step 2: Convert to fraction form
    339.17/467.92 = 207.95/x
  3. Step 3: Cross multiply
    339.17x = 467.92 × 207.95
  4. Step 4: Simplify right side
    339.17x = 97,302.27
  5. Step 5: Solve for x
    x = 97,302.27/339.17
  6. Step 6: Final answer
    x = 286.89

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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.