Finding the Fourth Proportional to 231.18, 319.08 and 169.08
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Solution
The fourth proportional to 231.18, 319.08 and 169.08 is: 233.37
Step by Step Solution
- Step 1: Write the proportion equation
231.18 : 319.08 = 169.08 : x - Step 2: Convert to fraction form
231.18/319.08 = 169.08/x - Step 3: Cross multiply
231.18x = 319.08 × 169.08 - Step 4: Simplify right side
231.18x = 53,950.05 - Step 5: Solve for x
x = 53,950.05/231.18 - Step 6: Final answer
x = 233.37
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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.