Finding the Fourth Proportional to 197.84, 296.62 and 129.26
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Solution
The fourth proportional to 197.84, 296.62 and 129.26 is: 193.80
Step by Step Solution
- Step 1: Write the proportion equation
197.84 : 296.62 = 129.26 : x - Step 2: Convert to fraction form
197.84/296.62 = 129.26/x - Step 3: Cross multiply
197.84x = 296.62 × 129.26 - Step 4: Simplify right side
197.84x = 38,341.10 - Step 5: Solve for x
x = 38,341.10/197.84 - Step 6: Final answer
x = 193.80
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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.