Finding the Fourth Proportional to 412,213.20, 618,319.80 and 202,261.20
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Solution
The fourth proportional to 412,213.20, 618,319.80 and 202,261.20 is: 303,391.80
Step by Step Solution
- Step 1: Write the proportion equation
412,213.20 : 618,319.80 = 202,261.20 : x - Step 2: Convert to fraction form
412,213.20/618,319.80 = 202,261.20/x - Step 3: Cross multiply
412,213.20x = 618,319.80 × 202,261.20 - Step 4: Simplify right side
412,213.20x = 125,062,104,731.76 - Step 5: Solve for x
x = 125,062,104,731.76/412,213.20 - Step 6: Final answer
x = 303,391.80
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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.