Finding the Fourth Proportional to 201.91, 302.87 and 64.97
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Solution
The fourth proportional to 201.91, 302.87 and 64.97 is: 97.45
Step by Step Solution
- Step 1: Write the proportion equation
201.91 : 302.87 = 64.97 : x - Step 2: Convert to fraction form
201.91/302.87 = 64.97/x - Step 3: Cross multiply
201.91x = 302.87 × 64.97 - Step 4: Simplify right side
201.91x = 19,675.62 - Step 5: Solve for x
x = 19,675.62/201.91 - Step 6: Final answer
x = 97.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.