Finding the Fourth Proportional to 216,691.92, 324,816.30 and 74,494.53
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Solution
The fourth proportional to 216,691.92, 324,816.30 and 74,494.53 is: 111,665.62
Step by Step Solution
- Step 1: Write the proportion equation
216,691.92 : 324,816.30 = 74,494.53 : x - Step 2: Convert to fraction form
216,691.92/324,816.30 = 74,494.53/x - Step 3: Cross multiply
216,691.92x = 324,816.30 × 74,494.53 - Step 4: Simplify right side
216,691.92x = 24,197,037,604.84 - Step 5: Solve for x
x = 24,197,037,604.84/216,691.92 - Step 6: Final answer
x = 111,665.62
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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.