Finding the Fourth Proportional to 197.64, 274 and 186.70
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Solution
The fourth proportional to 197.64, 274 and 186.70 is: 258.83
Step by Step Solution
- Step 1: Write the proportion equation
197.64 : 274 = 186.70 : x - Step 2: Convert to fraction form
197.64/274 = 186.70/x - Step 3: Cross multiply
197.64x = 274 × 186.70 - Step 4: Simplify right side
197.64x = 51,155.80 - Step 5: Solve for x
x = 51,155.80/197.64 - Step 6: Final answer
x = 258.83
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These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.