Finding the Fourth Proportional to 195.91, 270.26 and 129.64
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Solution
The fourth proportional to 195.91, 270.26 and 129.64 is: 178.84
Step by Step Solution
- Step 1: Write the proportion equation
195.91 : 270.26 = 129.64 : x - Step 2: Convert to fraction form
195.91/270.26 = 129.64/x - Step 3: Cross multiply
195.91x = 270.26 × 129.64 - Step 4: Simplify right side
195.91x = 35,035.18 - Step 5: Solve for x
x = 35,035.18/195.91 - Step 6: Final answer
x = 178.84
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.