Finding the Fourth Proportional to 290,986.53, 401,557.53 and 163,662.12
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Solution
The fourth proportional to 290,986.53, 401,557.53 and 163,662.12 is: 225,851.55
Step by Step Solution
- Step 1: Write the proportion equation
290,986.53 : 401,557.53 = 163,662.12 : x - Step 2: Convert to fraction form
290,986.53/401,557.53 = 163,662.12/x - Step 3: Cross multiply
290,986.53x = 401,557.53 × 163,662.12 - Step 4: Simplify right side
290,986.53x = 65,719,757,275.50 - Step 5: Solve for x
x = 65,719,757,275.50/290,986.53 - Step 6: Final answer
x = 225,851.55
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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.