Finding the Fourth Proportional to 218,920.73, 327,889.01 and 133,299.68
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Solution
The fourth proportional to 218,920.73, 327,889.01 and 133,299.68 is: 199,649.89
Step by Step Solution
- Step 1: Write the proportion equation
218,920.73 : 327,889.01 = 133,299.68 : x - Step 2: Convert to fraction form
218,920.73/327,889.01 = 133,299.68/x - Step 3: Cross multiply
218,920.73x = 327,889.01 × 133,299.68 - Step 4: Simplify right side
218,920.73x = 43,707,498,802.32 - Step 5: Solve for x
x = 43,707,498,802.32/218,920.73 - Step 6: Final answer
x = 199,649.89
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.