Finding the Fourth Proportional to 324,891.76, 447,939.56 and 209,977.08
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Solution
The fourth proportional to 324,891.76, 447,939.56 and 209,977.08 is: 289,502.70
Step by Step Solution
- Step 1: Write the proportion equation
324,891.76 : 447,939.56 = 209,977.08 : x - Step 2: Convert to fraction form
324,891.76/447,939.56 = 209,977.08/x - Step 3: Cross multiply
324,891.76x = 447,939.56 × 209,977.08 - Step 4: Simplify right side
324,891.76x = 94,057,040,825.28 - Step 5: Solve for x
x = 94,057,040,825.28/324,891.76 - Step 6: Final answer
x = 289,502.70
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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.