Finding the Fourth Proportional to 412,543.80, 618,729.30 and 202,332.60
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Solution
The fourth proportional to 412,543.80, 618,729.30 and 202,332.60 is: 303,456.53
Step by Step Solution
- Step 1: Write the proportion equation
412,543.80 : 618,729.30 = 202,332.60 : x - Step 2: Convert to fraction form
412,543.80/618,729.30 = 202,332.60/x - Step 3: Cross multiply
412,543.80x = 618,729.30 × 202,332.60 - Step 4: Simplify right side
412,543.80x = 125,189,107,965.18 - Step 5: Solve for x
x = 125,189,107,965.18/412,543.80 - Step 6: Final answer
x = 303,456.53
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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.