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Finding the Fourth Proportional to 226.40, 339.58 and 130.16

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Solution

The fourth proportional to 226.40, 339.58 and 130.16 is: 195.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    226.40 : 339.58 = 130.16 : x
  2. Step 2: Convert to fraction form
    226.40/339.58 = 130.16/x
  3. Step 3: Cross multiply
    226.40x = 339.58 × 130.16
  4. Step 4: Simplify right side
    226.40x = 44,199.73
  5. Step 5: Solve for x
    x = 44,199.73/226.40
  6. Step 6: Final answer
    x = 195.23

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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.