Finding the Fourth Proportional to 397,715.26, 548,847.14 and 218,867.26
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Solution
The fourth proportional to 397,715.26, 548,847.14 and 218,867.26 is: 302,036.86
Step by Step Solution
- Step 1: Write the proportion equation
397,715.26 : 548,847.14 = 218,867.26 : x - Step 2: Convert to fraction form
397,715.26/548,847.14 = 218,867.26/x - Step 3: Cross multiply
397,715.26x = 548,847.14 × 218,867.26 - Step 4: Simplify right side
397,715.26x = 120,124,669,690.64 - Step 5: Solve for x
x = 120,124,669,690.64/397,715.26 - Step 6: Final answer
x = 302,036.86
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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.