Finding the Fourth Proportional to 393,976.09, 543,707.36 and 240,966.28
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Solution
The fourth proportional to 393,976.09, 543,707.36 and 240,966.28 is: 332,545.92
Step by Step Solution
- Step 1: Write the proportion equation
393,976.09 : 543,707.36 = 240,966.28 : x - Step 2: Convert to fraction form
393,976.09/543,707.36 = 240,966.28/x - Step 3: Cross multiply
393,976.09x = 543,707.36 × 240,966.28 - Step 4: Simplify right side
393,976.09x = 131,015,139,947.82 - Step 5: Solve for x
x = 131,015,139,947.82/393,976.09 - Step 6: Final answer
x = 332,545.92
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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.