Finding the Fourth Proportional to 119.11, 178.68 and 117.26
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Solution
The fourth proportional to 119.11, 178.68 and 117.26 is: 175.90
Step by Step Solution
- Step 1: Write the proportion equation
119.11 : 178.68 = 117.26 : x - Step 2: Convert to fraction form
119.11/178.68 = 117.26/x - Step 3: Cross multiply
119.11x = 178.68 × 117.26 - Step 4: Simplify right side
119.11x = 20,952.02 - Step 5: Solve for x
x = 20,952.02/119.11 - Step 6: Final answer
x = 175.90
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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.