Finding the Fourth Proportional to 216,082.54, 324,158.37 and 91,424.62
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Solution
The fourth proportional to 216,082.54, 324,158.37 and 91,424.62 is: 137,151.55
Step by Step Solution
- Step 1: Write the proportion equation
216,082.54 : 324,158.37 = 91,424.62 : x - Step 2: Convert to fraction form
216,082.54/324,158.37 = 91,424.62/x - Step 3: Cross multiply
216,082.54x = 324,158.37 × 91,424.62 - Step 4: Simplify right side
216,082.54x = 29,636,055,797.07 - Step 5: Solve for x
x = 29,636,055,797.07/216,082.54 - Step 6: Final answer
x = 137,151.55
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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.