Finding the Fourth Proportional to 290,489.94, 399,949.36 and 245,055.02
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Solution
The fourth proportional to 290,489.94, 399,949.36 and 245,055.02 is: 337,394.12
Step by Step Solution
- Step 1: Write the proportion equation
290,489.94 : 399,949.36 = 245,055.02 : x - Step 2: Convert to fraction form
290,489.94/399,949.36 = 245,055.02/x - Step 3: Cross multiply
290,489.94x = 399,949.36 × 245,055.02 - Step 4: Simplify right side
290,489.94x = 98,009,598,413.79 - Step 5: Solve for x
x = 98,009,598,413.79/290,489.94 - Step 6: Final answer
x = 337,394.12
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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.