Finding the Fourth Proportional to 207,560.84, 311,133.21 and 81,027.09
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Solution
The fourth proportional to 207,560.84, 311,133.21 and 81,027.09 is: 121,459.42
Step by Step Solution
- Step 1: Write the proportion equation
207,560.84 : 311,133.21 = 81,027.09 : x - Step 2: Convert to fraction form
207,560.84/311,133.21 = 81,027.09/x - Step 3: Cross multiply
207,560.84x = 311,133.21 × 81,027.09 - Step 4: Simplify right side
207,560.84x = 25,210,218,608.66 - Step 5: Solve for x
x = 25,210,218,608.66/207,560.84 - Step 6: Final answer
x = 121,459.42
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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.