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Finding the Fourth Proportional to 350.78, 526.28 and 196.65

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Solution

The fourth proportional to 350.78, 526.28 and 196.65 is: 295.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.78 : 526.28 = 196.65 : x
  2. Step 2: Convert to fraction form
    350.78/526.28 = 196.65/x
  3. Step 3: Cross multiply
    350.78x = 526.28 × 196.65
  4. Step 4: Simplify right side
    350.78x = 103,491.98
  5. Step 5: Solve for x
    x = 103,491.98/350.78
  6. Step 6: Final answer
    x = 295.04

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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.