Finding the Fourth Proportional to 198,497.11, 297,578.30 and 86,092.70
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Solution
The fourth proportional to 198,497.11, 297,578.30 and 86,092.70 is: 129,066.46
Step by Step Solution
- Step 1: Write the proportion equation
198,497.11 : 297,578.30 = 86,092.70 : x - Step 2: Convert to fraction form
198,497.11/297,578.30 = 86,092.70/x - Step 3: Cross multiply
198,497.11x = 297,578.30 × 86,092.70 - Step 4: Simplify right side
198,497.11x = 25,619,319,308.41 - Step 5: Solve for x
x = 25,619,319,308.41/198,497.11 - Step 6: Final answer
x = 129,066.46
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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.