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Finding the Fourth Proportional to 375.65, 518.44 and 235.88

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Solution

The fourth proportional to 375.65, 518.44 and 235.88 is: 325.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.65 : 518.44 = 235.88 : x
  2. Step 2: Convert to fraction form
    375.65/518.44 = 235.88/x
  3. Step 3: Cross multiply
    375.65x = 518.44 × 235.88
  4. Step 4: Simplify right side
    375.65x = 122,286.45
  5. Step 5: Solve for x
    x = 122,286.45/375.65
  6. Step 6: Final answer
    x = 325.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.