Finding the Fourth Proportional to 403,405.72, 556,695.42 and 222,112.99
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Solution
The fourth proportional to 403,405.72, 556,695.42 and 222,112.99 is: 306,513.46
Step by Step Solution
- Step 1: Write the proportion equation
403,405.72 : 556,695.42 = 222,112.99 : x - Step 2: Convert to fraction form
403,405.72/556,695.42 = 222,112.99/x - Step 3: Cross multiply
403,405.72x = 556,695.42 × 222,112.99 - Step 4: Simplify right side
403,405.72x = 123,649,284,255.51 - Step 5: Solve for x
x = 123,649,284,255.51/403,405.72 - Step 6: Final answer
x = 306,513.46
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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.