Finding the Fourth Proportional to 181,563.20, 250,553.61 and 100,988.99
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Solution
The fourth proportional to 181,563.20, 250,553.61 and 100,988.99 is: 139,362.80
Step by Step Solution
- Step 1: Write the proportion equation
181,563.20 : 250,553.61 = 100,988.99 : x - Step 2: Convert to fraction form
181,563.20/250,553.61 = 100,988.99/x - Step 3: Cross multiply
181,563.20x = 250,553.61 × 100,988.99 - Step 4: Simplify right side
181,563.20x = 25,303,156,014.75 - Step 5: Solve for x
x = 25,303,156,014.75/181,563.20 - Step 6: Final answer
x = 139,362.80
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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.