Finding the Fourth Proportional to 274,693.81, 412,104.62 and 85,144.12
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Solution
The fourth proportional to 274,693.81, 412,104.62 and 85,144.12 is: 127,735.99
Step by Step Solution
- Step 1: Write the proportion equation
274,693.81 : 412,104.62 = 85,144.12 : x - Step 2: Convert to fraction form
274,693.81/412,104.62 = 85,144.12/x - Step 3: Cross multiply
274,693.81x = 412,104.62 × 85,144.12 - Step 4: Simplify right side
274,693.81x = 35,088,284,792.11 - Step 5: Solve for x
x = 35,088,284,792.11/274,693.81 - Step 6: Final answer
x = 127,735.99
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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.