Finding the Fourth Proportional to 201.64, 302.54 and 79.99
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Solution
The fourth proportional to 201.64, 302.54 and 79.99 is: 120.02
Step by Step Solution
- Step 1: Write the proportion equation
201.64 : 302.54 = 79.99 : x - Step 2: Convert to fraction form
201.64/302.54 = 79.99/x - Step 3: Cross multiply
201.64x = 302.54 × 79.99 - Step 4: Simplify right side
201.64x = 24,200.17 - Step 5: Solve for x
x = 24,200.17/201.64 - Step 6: Final answer
x = 120.02
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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.