Finding the Fourth Proportional to 201.97, 303.01 and 128.95
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Solution
The fourth proportional to 201.97, 303.01 and 128.95 is: 193.46
Step by Step Solution
- Step 1: Write the proportion equation
201.97 : 303.01 = 128.95 : x - Step 2: Convert to fraction form
201.97/303.01 = 128.95/x - Step 3: Cross multiply
201.97x = 303.01 × 128.95 - Step 4: Simplify right side
201.97x = 39,073.14 - Step 5: Solve for x
x = 39,073.14/201.97 - Step 6: Final answer
x = 193.46
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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.