Finding the Fourth Proportional to 397,220.92, 548,104.08 and 225,129.04
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Solution
The fourth proportional to 397,220.92, 548,104.08 and 225,129.04 is: 310,643.62
Step by Step Solution
- Step 1: Write the proportion equation
397,220.92 : 548,104.08 = 225,129.04 : x - Step 2: Convert to fraction form
397,220.92/548,104.08 = 225,129.04/x - Step 3: Cross multiply
397,220.92x = 548,104.08 × 225,129.04 - Step 4: Simplify right side
397,220.92x = 123,394,145,350.48 - Step 5: Solve for x
x = 123,394,145,350.48/397,220.92 - Step 6: Final answer
x = 310,643.62
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1.5x scale
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.