Finding the Fourth Proportional to 291,242.88, 401,861.52 and 163,891.44
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Solution
The fourth proportional to 291,242.88, 401,861.52 and 163,891.44 is: 226,139.99
Step by Step Solution
- Step 1: Write the proportion equation
291,242.88 : 401,861.52 = 163,891.44 : x - Step 2: Convert to fraction form
291,242.88/401,861.52 = 163,891.44/x - Step 3: Cross multiply
291,242.88x = 401,861.52 × 163,891.44 - Step 4: Simplify right side
291,242.88x = 65,861,663,193.39 - Step 5: Solve for x
x = 65,861,663,193.39/291,242.88 - Step 6: Final answer
x = 226,139.99
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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.