Finding the Fourth Proportional to 201.74, 302.39 and 79.94
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Solution
The fourth proportional to 201.74, 302.39 and 79.94 is: 119.82
Step by Step Solution
- Step 1: Write the proportion equation
201.74 : 302.39 = 79.94 : x - Step 2: Convert to fraction form
201.74/302.39 = 79.94/x - Step 3: Cross multiply
201.74x = 302.39 × 79.94 - Step 4: Simplify right side
201.74x = 24,173.06 - Step 5: Solve for x
x = 24,173.06/201.74 - Step 6: Final answer
x = 119.82
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.