Finding the Fourth Proportional to 287,511.81, 396,769.02 and 158,454.99
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Solution
The fourth proportional to 287,511.81, 396,769.02 and 158,454.99 is: 218,669.39
Step by Step Solution
- Step 1: Write the proportion equation
287,511.81 : 396,769.02 = 158,454.99 : x - Step 2: Convert to fraction form
287,511.81/396,769.02 = 158,454.99/x - Step 3: Cross multiply
287,511.81x = 396,769.02 × 158,454.99 - Step 4: Simplify right side
287,511.81x = 62,870,030,998.16 - Step 5: Solve for x
x = 62,870,030,998.16/287,511.81 - Step 6: Final answer
x = 218,669.39
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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.