Finding the Fourth Proportional to 397,269.93, 548,243.31 and 215,994.05
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Solution
The fourth proportional to 397,269.93, 548,243.31 and 215,994.05 is: 298,077.66
Step by Step Solution
- Step 1: Write the proportion equation
397,269.93 : 548,243.31 = 215,994.05 : x - Step 2: Convert to fraction form
397,269.93/548,243.31 = 215,994.05/x - Step 3: Cross multiply
397,269.93x = 548,243.31 × 215,994.05 - Step 4: Simplify right side
397,269.93x = 118,417,292,912.31 - Step 5: Solve for x
x = 118,417,292,912.31/397,269.93 - Step 6: Final answer
x = 298,077.66
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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.