Finding the Fourth Proportional to 197.68, 272.64 and 158.80
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Solution
The fourth proportional to 197.68, 272.64 and 158.80 is: 219.02
Step by Step Solution
- Step 1: Write the proportion equation
197.68 : 272.64 = 158.80 : x - Step 2: Convert to fraction form
197.68/272.64 = 158.80/x - Step 3: Cross multiply
197.68x = 272.64 × 158.80 - Step 4: Simplify right side
197.68x = 43,295.23 - Step 5: Solve for x
x = 43,295.23/197.68 - Step 6: Final answer
x = 219.02
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.