Finding the Fourth Proportional to 197.13, 295.79 and 68.88
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Solution
The fourth proportional to 197.13, 295.79 and 68.88 is: 103.35
Step by Step Solution
- Step 1: Write the proportion equation
197.13 : 295.79 = 68.88 : x - Step 2: Convert to fraction form
197.13/295.79 = 68.88/x - Step 3: Cross multiply
197.13x = 295.79 × 68.88 - Step 4: Simplify right side
197.13x = 20,374.02 - Step 5: Solve for x
x = 20,374.02/197.13 - Step 6: Final answer
x = 103.35
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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.