Finding the Fourth Proportional to 397,706.82, 548,845.53 and 216,428.58
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Solution
The fourth proportional to 397,706.82, 548,845.53 and 216,428.58 is: 298,676.95
Step by Step Solution
- Step 1: Write the proportion equation
397,706.82 : 548,845.53 = 216,428.58 : x - Step 2: Convert to fraction form
397,706.82/548,845.53 = 216,428.58/x - Step 3: Cross multiply
397,706.82x = 548,845.53 × 216,428.58 - Step 4: Simplify right side
397,706.82x = 118,785,858,697.25 - Step 5: Solve for x
x = 118,785,858,697.25/397,706.82 - Step 6: Final answer
x = 298,676.95
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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.