Finding the Fourth Proportional to 290,755.15, 401,183.28 and 169,873.09
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Solution
The fourth proportional to 290,755.15, 401,183.28 and 169,873.09 is: 234,390.49
Step by Step Solution
- Step 1: Write the proportion equation
290,755.15 : 401,183.28 = 169,873.09 : x - Step 2: Convert to fraction form
290,755.15/401,183.28 = 169,873.09/x - Step 3: Cross multiply
290,755.15x = 401,183.28 × 169,873.09 - Step 4: Simplify right side
290,755.15x = 68,150,242,426.98 - Step 5: Solve for x
x = 68,150,242,426.98/290,755.15 - Step 6: Final answer
x = 234,390.49
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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.