Finding the Fourth Proportional to 311,678.21, 467,543.82 and 98,389.05
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Solution
The fourth proportional to 311,678.21, 467,543.82 and 98,389.05 is: 147,591.94
Step by Step Solution
- Step 1: Write the proportion equation
311,678.21 : 467,543.82 = 98,389.05 : x - Step 2: Convert to fraction form
311,678.21/467,543.82 = 98,389.05/x - Step 3: Cross multiply
311,678.21x = 467,543.82 × 98,389.05 - Step 4: Simplify right side
311,678.21x = 46,001,192,283.17 - Step 5: Solve for x
x = 46,001,192,283.17/311,678.21 - Step 6: Final answer
x = 147,591.94
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.