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Finding the Fourth Proportional to 339.88, 509.08 and 195.24

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Solution

The fourth proportional to 339.88, 509.08 and 195.24 is: 292.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    339.88 : 509.08 = 195.24 : x
  2. Step 2: Convert to fraction form
    339.88/509.08 = 195.24/x
  3. Step 3: Cross multiply
    339.88x = 509.08 × 195.24
  4. Step 4: Simplify right side
    339.88x = 99,392.78
  5. Step 5: Solve for x
    x = 99,392.78/339.88
  6. Step 6: Final answer
    x = 292.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.