Finding the Fourth Proportional to 207,047.70, 310,571.55 and 73,991.70
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Solution
The fourth proportional to 207,047.70, 310,571.55 and 73,991.70 is: 110,987.55
Step by Step Solution
- Step 1: Write the proportion equation
207,047.70 : 310,571.55 = 73,991.70 : x - Step 2: Convert to fraction form
207,047.70/310,571.55 = 73,991.70/x - Step 3: Cross multiply
207,047.70x = 310,571.55 × 73,991.70 - Step 4: Simplify right side
207,047.70x = 22,979,716,956.14 - Step 5: Solve for x
x = 22,979,716,956.14/207,047.70 - Step 6: Final answer
x = 110,987.55
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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.