Finding the Fourth Proportional to 145.84, 201.26 and 80.35
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Solution
The fourth proportional to 145.84, 201.26 and 80.35 is: 110.88
Step by Step Solution
- Step 1: Write the proportion equation
145.84 : 201.26 = 80.35 : x - Step 2: Convert to fraction form
145.84/201.26 = 80.35/x - Step 3: Cross multiply
145.84x = 201.26 × 80.35 - Step 4: Simplify right side
145.84x = 16,171.24 - Step 5: Solve for x
x = 16,171.24/145.84 - Step 6: Final answer
x = 110.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.