Finding the Fourth Proportional to 356,413.87, 491,864.70 and 203,476.96
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Solution
The fourth proportional to 356,413.87, 491,864.70 and 203,476.96 is: 280,805.95
Step by Step Solution
- Step 1: Write the proportion equation
356,413.87 : 491,864.70 = 203,476.96 : x - Step 2: Convert to fraction form
356,413.87/491,864.70 = 203,476.96/x - Step 3: Cross multiply
356,413.87x = 491,864.70 × 203,476.96 - Step 4: Simplify right side
356,413.87x = 100,083,133,887.31 - Step 5: Solve for x
x = 100,083,133,887.31/356,413.87 - Step 6: Final answer
x = 280,805.95
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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.