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Finding the Fourth Proportional to 351.30, 526.53 and 196.99

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Solution

The fourth proportional to 351.30, 526.53 and 196.99 is: 295.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.30 : 526.53 = 196.99 : x
  2. Step 2: Convert to fraction form
    351.30/526.53 = 196.99/x
  3. Step 3: Cross multiply
    351.30x = 526.53 × 196.99
  4. Step 4: Simplify right side
    351.30x = 103,721.14
  5. Step 5: Solve for x
    x = 103,721.14/351.30
  6. Step 6: Final answer
    x = 295.25

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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.