Finding the Fourth Proportional to 207,724.75, 311,639.70 and 57,965.02
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Solution
The fourth proportional to 207,724.75, 311,639.70 and 57,965.02 is: 86,962.20
Step by Step Solution
- Step 1: Write the proportion equation
207,724.75 : 311,639.70 = 57,965.02 : x - Step 2: Convert to fraction form
207,724.75/311,639.70 = 57,965.02/x - Step 3: Cross multiply
207,724.75x = 311,639.70 × 57,965.02 - Step 4: Simplify right side
207,724.75x = 18,064,200,881.56 - Step 5: Solve for x
x = 18,064,200,881.56/207,724.75 - Step 6: Final answer
x = 86,962.20
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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.