Finding the Fourth Proportional to 115.28, 174.14 and 114.26
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Solution
The fourth proportional to 115.28, 174.14 and 114.26 is: 172.61
Step by Step Solution
- Step 1: Write the proportion equation
115.28 : 174.14 = 114.26 : x - Step 2: Convert to fraction form
115.28/174.14 = 114.26/x - Step 3: Cross multiply
115.28x = 174.14 × 114.26 - Step 4: Simplify right side
115.28x = 19,897.24 - Step 5: Solve for x
x = 19,897.24/115.28 - Step 6: Final answer
x = 172.61
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.