Finding the Fourth Proportional to 201.66, 302.49 and 64.68
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Solution
The fourth proportional to 201.66, 302.49 and 64.68 is: 97.03
Step by Step Solution
- Step 1: Write the proportion equation
201.66 : 302.49 = 64.68 : x - Step 2: Convert to fraction form
201.66/302.49 = 64.68/x - Step 3: Cross multiply
201.66x = 302.49 × 64.68 - Step 4: Simplify right side
201.66x = 19,565.81 - Step 5: Solve for x
x = 19,565.81/201.66 - Step 6: Final answer
x = 97.03
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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.