Finding the Fourth Proportional to 403,745.09, 557,165.49 and 222,452.82
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Solution
The fourth proportional to 403,745.09, 557,165.49 and 222,452.82 is: 306,983.38
Step by Step Solution
- Step 1: Write the proportion equation
403,745.09 : 557,165.49 = 222,452.82 : x - Step 2: Convert to fraction form
403,745.09/557,165.49 = 222,452.82/x - Step 3: Cross multiply
403,745.09x = 557,165.49 × 222,452.82 - Step 4: Simplify right side
403,745.09x = 123,943,030,559.09 - Step 5: Solve for x
x = 123,943,030,559.09/403,745.09 - Step 6: Final answer
x = 306,983.38
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1.5x scale
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.