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Finding the Fourth Proportional to 246.21, 369.42 and 130.65

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Solution

The fourth proportional to 246.21, 369.42 and 130.65 is: 196.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.21 : 369.42 = 130.65 : x
  2. Step 2: Convert to fraction form
    246.21/369.42 = 130.65/x
  3. Step 3: Cross multiply
    246.21x = 369.42 × 130.65
  4. Step 4: Simplify right side
    246.21x = 48,264.72
  5. Step 5: Solve for x
    x = 48,264.72/246.21
  6. Step 6: Final answer
    x = 196.03

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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.