Finding the Fourth Proportional to 145.71, 201.08 and 80.22
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Solution
The fourth proportional to 145.71, 201.08 and 80.22 is: 110.70
Step by Step Solution
- Step 1: Write the proportion equation
145.71 : 201.08 = 80.22 : x - Step 2: Convert to fraction form
145.71/201.08 = 80.22/x - Step 3: Cross multiply
145.71x = 201.08 × 80.22 - Step 4: Simplify right side
145.71x = 16,130.24 - Step 5: Solve for x
x = 16,130.24/145.71 - Step 6: Final answer
x = 110.70
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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.