Finding the Fourth Proportional to 204,997.67, 282,809.58 and 128,464.68
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Solution
The fourth proportional to 204,997.67, 282,809.58 and 128,464.68 is: 177,226.61
Step by Step Solution
- Step 1: Write the proportion equation
204,997.67 : 282,809.58 = 128,464.68 : x - Step 2: Convert to fraction form
204,997.67/282,809.58 = 128,464.68/x - Step 3: Cross multiply
204,997.67x = 282,809.58 × 128,464.68 - Step 4: Simplify right side
204,997.67x = 36,331,042,195.63 - Step 5: Solve for x
x = 36,331,042,195.63/204,997.67 - Step 6: Final answer
x = 177,226.61
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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.