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Finding the Fourth Proportional to 233.58, 350.18 and 130.80

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Solution

The fourth proportional to 233.58, 350.18 and 130.80 is: 196.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.58 : 350.18 = 130.80 : x
  2. Step 2: Convert to fraction form
    233.58/350.18 = 130.80/x
  3. Step 3: Cross multiply
    233.58x = 350.18 × 130.80
  4. Step 4: Simplify right side
    233.58x = 45,803.54
  5. Step 5: Solve for x
    x = 45,803.54/233.58
  6. Step 6: Final answer
    x = 196.09

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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.