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Finding the Fourth Proportional to 335.94, 503.91 and 130.47

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Solution

The fourth proportional to 335.94, 503.91 and 130.47 is: 195.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.94 : 503.91 = 130.47 : x
  2. Step 2: Convert to fraction form
    335.94/503.91 = 130.47/x
  3. Step 3: Cross multiply
    335.94x = 503.91 × 130.47
  4. Step 4: Simplify right side
    335.94x = 65,745.14
  5. Step 5: Solve for x
    x = 65,745.14/335.94
  6. Step 6: Final answer
    x = 195.71

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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.