Finding the Fourth Proportional to 197,868.36, 296,310.21 and 138,425.70
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Solution
The fourth proportional to 197,868.36, 296,310.21 and 138,425.70 is: 207,294.12
Step by Step Solution
- Step 1: Write the proportion equation
197,868.36 : 296,310.21 = 138,425.70 : x - Step 2: Convert to fraction form
197,868.36/296,310.21 = 138,425.70/x - Step 3: Cross multiply
197,868.36x = 296,310.21 × 138,425.70 - Step 4: Simplify right side
197,868.36x = 41,016,948,236.40 - Step 5: Solve for x
x = 41,016,948,236.40/197,868.36 - Step 6: Final answer
x = 207,294.12
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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.