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Finding the Fourth Proportional to 225.32, 336.35 and 197.99

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Solution

The fourth proportional to 225.32, 336.35 and 197.99 is: 295.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.32 : 336.35 = 197.99 : x
  2. Step 2: Convert to fraction form
    225.32/336.35 = 197.99/x
  3. Step 3: Cross multiply
    225.32x = 336.35 × 197.99
  4. Step 4: Simplify right side
    225.32x = 66,593.00
  5. Step 5: Solve for x
    x = 66,593.00/225.32
  6. Step 6: Final answer
    x = 295.55

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.