Finding the Fourth Proportional to 231.99, 347.92 and 69.68
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Solution
The fourth proportional to 231.99, 347.92 and 69.68 is: 104.50
Step by Step Solution
- Step 1: Write the proportion equation
231.99 : 347.92 = 69.68 : x - Step 2: Convert to fraction form
231.99/347.92 = 69.68/x - Step 3: Cross multiply
231.99x = 347.92 × 69.68 - Step 4: Simplify right side
231.99x = 24,243.07 - Step 5: Solve for x
x = 24,243.07/231.99 - Step 6: Final answer
x = 104.50
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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.