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Finding the Fourth Proportional to 238.37, 357.82 and 130.37

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Solution

The fourth proportional to 238.37, 357.82 and 130.37 is: 195.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    238.37 : 357.82 = 130.37 : x
  2. Step 2: Convert to fraction form
    238.37/357.82 = 130.37/x
  3. Step 3: Cross multiply
    238.37x = 357.82 × 130.37
  4. Step 4: Simplify right side
    238.37x = 46,647.20
  5. Step 5: Solve for x
    x = 46,647.20/238.37
  6. Step 6: Final answer
    x = 195.70

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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.