Finding the Fourth Proportional to 196.41, 270.99 and 113.52
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Solution
The fourth proportional to 196.41, 270.99 and 113.52 is: 156.63
Step by Step Solution
- Step 1: Write the proportion equation
196.41 : 270.99 = 113.52 : x - Step 2: Convert to fraction form
196.41/270.99 = 113.52/x - Step 3: Cross multiply
196.41x = 270.99 × 113.52 - Step 4: Simplify right side
196.41x = 30,762.78 - Step 5: Solve for x
x = 30,762.78/196.41 - Step 6: Final answer
x = 156.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.