Finding the Fourth Proportional to 403,433.21, 556,741.96 and 222,161.99
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Solution
The fourth proportional to 403,433.21, 556,741.96 and 222,161.99 is: 306,585.82
Step by Step Solution
- Step 1: Write the proportion equation
403,433.21 : 556,741.96 = 222,161.99 : x - Step 2: Convert to fraction form
403,433.21/556,741.96 = 222,161.99/x - Step 3: Cross multiply
403,433.21x = 556,741.96 × 222,161.99 - Step 4: Simplify right side
403,433.21x = 123,686,901,542.66 - Step 5: Solve for x
x = 123,686,901,542.66/403,433.21 - Step 6: Final answer
x = 306,585.82
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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.