Finding the Fourth Proportional to 209,824.16, 289,553.60 and 114,331.68
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Solution
The fourth proportional to 209,824.16, 289,553.60 and 114,331.68 is: 157,775.68
Step by Step Solution
- Step 1: Write the proportion equation
209,824.16 : 289,553.60 = 114,331.68 : x - Step 2: Convert to fraction form
209,824.16/289,553.60 = 114,331.68/x - Step 3: Cross multiply
209,824.16x = 289,553.60 × 114,331.68 - Step 4: Simplify right side
209,824.16x = 33,105,149,538.05 - Step 5: Solve for x
x = 33,105,149,538.05/209,824.16 - Step 6: Final answer
x = 157,775.68
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1.5x scale
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.