Finding the Fourth Proportional to 181,245.32, 271,916.99 and 128,986.55
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Solution
The fourth proportional to 181,245.32, 271,916.99 and 128,986.55 is: 193,514.70
Step by Step Solution
- Step 1: Write the proportion equation
181,245.32 : 271,916.99 = 128,986.55 : x - Step 2: Convert to fraction form
181,245.32/271,916.99 = 128,986.55/x - Step 3: Cross multiply
181,245.32x = 271,916.99 × 128,986.55 - Step 4: Simplify right side
181,245.32x = 35,073,634,426.48 - Step 5: Solve for x
x = 35,073,634,426.48/181,245.32 - Step 6: Final answer
x = 193,514.70
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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.