Finding the Fourth Proportional to 197.60, 296.08 and 133.36
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Solution
The fourth proportional to 197.60, 296.08 and 133.36 is: 199.82
Step by Step Solution
- Step 1: Write the proportion equation
197.60 : 296.08 = 133.36 : x - Step 2: Convert to fraction form
197.60/296.08 = 133.36/x - Step 3: Cross multiply
197.60x = 296.08 × 133.36 - Step 4: Simplify right side
197.60x = 39,485.23 - Step 5: Solve for x
x = 39,485.23/197.60 - Step 6: Final answer
x = 199.82
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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.