Finding the Fourth Proportional to 201.12, 277.62 and 143.08
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Solution
The fourth proportional to 201.12, 277.62 and 143.08 is: 197.50
Step by Step Solution
- Step 1: Write the proportion equation
201.12 : 277.62 = 143.08 : x - Step 2: Convert to fraction form
201.12/277.62 = 143.08/x - Step 3: Cross multiply
201.12x = 277.62 × 143.08 - Step 4: Simplify right side
201.12x = 39,721.87 - Step 5: Solve for x
x = 39,721.87/201.12 - Step 6: Final answer
x = 197.50
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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.