Finding the Fourth Proportional to 274,173.57, 378,394.74 and 153,321.60
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Solution
The fourth proportional to 274,173.57, 378,394.74 and 153,321.60 is: 211,603.50
Step by Step Solution
- Step 1: Write the proportion equation
274,173.57 : 378,394.74 = 153,321.60 : x - Step 2: Convert to fraction form
274,173.57/378,394.74 = 153,321.60/x - Step 3: Cross multiply
274,173.57x = 378,394.74 × 153,321.60 - Step 4: Simplify right side
274,173.57x = 58,016,086,968.38 - Step 5: Solve for x
x = 58,016,086,968.38/274,173.57 - Step 6: Final answer
x = 211,603.50
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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.