Finding the Fourth Proportional to 287,316.76, 396,497.11 and 166,528.12
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Solution
The fourth proportional to 287,316.76, 396,497.11 and 166,528.12 is: 229,808.79
Step by Step Solution
- Step 1: Write the proportion equation
287,316.76 : 396,497.11 = 166,528.12 : x - Step 2: Convert to fraction form
287,316.76/396,497.11 = 166,528.12/x - Step 3: Cross multiply
287,316.76x = 396,497.11 × 166,528.12 - Step 4: Simplify right side
287,316.76x = 66,027,918,313.73 - Step 5: Solve for x
x = 66,027,918,313.73/287,316.76 - Step 6: Final answer
x = 229,808.79
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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.