Finding the Fourth Proportional to 438,617.81, 605,293.49 and 237,413.81
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Solution
The fourth proportional to 438,617.81, 605,293.49 and 237,413.81 is: 327,631.55
Step by Step Solution
- Step 1: Write the proportion equation
438,617.81 : 605,293.49 = 237,413.81 : x - Step 2: Convert to fraction form
438,617.81/605,293.49 = 237,413.81/x - Step 3: Cross multiply
438,617.81x = 605,293.49 × 237,413.81 - Step 4: Simplify right side
438,617.81x = 143,705,033,629.10 - Step 5: Solve for x
x = 143,705,033,629.10/438,617.81 - Step 6: Final answer
x = 327,631.55
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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.