Finding the Fourth Proportional to 197.19, 295.99 and 143.19
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Solution
The fourth proportional to 197.19, 295.99 and 143.19 is: 214.93
Step by Step Solution
- Step 1: Write the proportion equation
197.19 : 295.99 = 143.19 : x - Step 2: Convert to fraction form
197.19/295.99 = 143.19/x - Step 3: Cross multiply
197.19x = 295.99 × 143.19 - Step 4: Simplify right side
197.19x = 42,382.45 - Step 5: Solve for x
x = 42,382.45/197.19 - Step 6: Final answer
x = 214.93
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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.