Finding the Fourth Proportional to 232.18, 320.49 and 138.96
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Solution
The fourth proportional to 232.18, 320.49 and 138.96 is: 191.80
Step by Step Solution
- Step 1: Write the proportion equation
232.18 : 320.49 = 138.96 : x - Step 2: Convert to fraction form
232.18/320.49 = 138.96/x - Step 3: Cross multiply
232.18x = 320.49 × 138.96 - Step 4: Simplify right side
232.18x = 44,532.99 - Step 5: Solve for x
x = 44,532.99/232.18 - Step 6: Final answer
x = 191.80
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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.