Finding the Fourth Proportional to 397,496.70, 548,495.55 and 268,715.31
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Solution
The fourth proportional to 397,496.70, 548,495.55 and 268,715.31 is: 370,793.39
Step by Step Solution
- Step 1: Write the proportion equation
397,496.70 : 548,495.55 = 268,715.31 : x - Step 2: Convert to fraction form
397,496.70/548,495.55 = 268,715.31/x - Step 3: Cross multiply
397,496.70x = 548,495.55 × 268,715.31 - Step 4: Simplify right side
397,496.70x = 147,389,149,695.01 - Step 5: Solve for x
x = 147,389,149,695.01/397,496.70 - Step 6: Final answer
x = 370,793.39
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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.