Finding the Fourth Proportional to 201.95, 302.91 and 73.70
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Solution
The fourth proportional to 201.95, 302.91 and 73.70 is: 110.54
Step by Step Solution
- Step 1: Write the proportion equation
201.95 : 302.91 = 73.70 : x - Step 2: Convert to fraction form
201.95/302.91 = 73.70/x - Step 3: Cross multiply
201.95x = 302.91 × 73.70 - Step 4: Simplify right side
201.95x = 22,322.95 - Step 5: Solve for x
x = 22,322.95/201.95 - Step 6: Final answer
x = 110.54
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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.