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Finding the Fourth Proportional to 350.45, 525.42 and 119.20

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Solution

The fourth proportional to 350.45, 525.42 and 119.20 is: 178.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.45 : 525.42 = 119.20 : x
  2. Step 2: Convert to fraction form
    350.45/525.42 = 119.20/x
  3. Step 3: Cross multiply
    350.45x = 525.42 × 119.20
  4. Step 4: Simplify right side
    350.45x = 62,630.06
  5. Step 5: Solve for x
    x = 62,630.06/350.45
  6. Step 6: Final answer
    x = 178.71

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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.