Finding the Fourth Proportional to 201.77, 302.61 and 69.99
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Solution
The fourth proportional to 201.77, 302.61 and 69.99 is: 104.97
Step by Step Solution
- Step 1: Write the proportion equation
201.77 : 302.61 = 69.99 : x - Step 2: Convert to fraction form
201.77/302.61 = 69.99/x - Step 3: Cross multiply
201.77x = 302.61 × 69.99 - Step 4: Simplify right side
201.77x = 21,179.67 - Step 5: Solve for x
x = 21,179.67/201.77 - Step 6: Final answer
x = 104.97
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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.