Finding the Fourth Proportional to 204,998.67, 282,810.96 and 128,465.68
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Solution
The fourth proportional to 204,998.67, 282,810.96 and 128,465.68 is: 177,227.99
Step by Step Solution
- Step 1: Write the proportion equation
204,998.67 : 282,810.96 = 128,465.68 : x - Step 2: Convert to fraction form
204,998.67/282,810.96 = 128,465.68/x - Step 3: Cross multiply
204,998.67x = 282,810.96 × 128,465.68 - Step 4: Simplify right side
204,998.67x = 36,331,502,287.85 - Step 5: Solve for x
x = 36,331,502,287.85/204,998.67 - Step 6: Final answer
x = 177,227.99
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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.