Finding the Fourth Proportional to 412,542.80, 618,727.80 and 202,331.60
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Solution
The fourth proportional to 412,542.80, 618,727.80 and 202,331.60 is: 303,455.03
Step by Step Solution
- Step 1: Write the proportion equation
412,542.80 : 618,727.80 = 202,331.60 : x - Step 2: Convert to fraction form
412,542.80/618,727.80 = 202,331.60/x - Step 3: Cross multiply
412,542.80x = 618,727.80 × 202,331.60 - Step 4: Simplify right side
412,542.80x = 125,188,185,738.48 - Step 5: Solve for x
x = 125,188,185,738.48/412,542.80 - Step 6: Final answer
x = 303,455.03
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1.5x scale
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.