Finding the Fourth Proportional to 212,324.43, 318,489.08 and 72,093.99
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Solution
The fourth proportional to 212,324.43, 318,489.08 and 72,093.99 is: 108,141.81
Step by Step Solution
- Step 1: Write the proportion equation
212,324.43 : 318,489.08 = 72,093.99 : x - Step 2: Convert to fraction form
212,324.43/318,489.08 = 72,093.99/x - Step 3: Cross multiply
212,324.43x = 318,489.08 × 72,093.99 - Step 4: Simplify right side
212,324.43x = 22,961,148,188.16 - Step 5: Solve for x
x = 22,961,148,188.16/212,324.43 - Step 6: Final answer
x = 108,141.81
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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.