Finding the Fourth Proportional to 201.68, 302.24 and 79.91
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Solution
The fourth proportional to 201.68, 302.24 and 79.91 is: 119.75
Step by Step Solution
- Step 1: Write the proportion equation
201.68 : 302.24 = 79.91 : x - Step 2: Convert to fraction form
201.68/302.24 = 79.91/x - Step 3: Cross multiply
201.68x = 302.24 × 79.91 - Step 4: Simplify right side
201.68x = 24,152.00 - Step 5: Solve for x
x = 24,152.00/201.68 - Step 6: Final answer
x = 119.75
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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.