Finding the Fourth Proportional to 391,762.96, 540,755.94 and 222,110.08
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Solution
The fourth proportional to 391,762.96, 540,755.94 and 222,110.08 is: 306,581.68
Step by Step Solution
- Step 1: Write the proportion equation
391,762.96 : 540,755.94 = 222,110.08 : x - Step 2: Convert to fraction form
391,762.96/540,755.94 = 222,110.08/x - Step 3: Cross multiply
391,762.96x = 540,755.94 × 222,110.08 - Step 4: Simplify right side
391,762.96x = 120,107,345,093.88 - Step 5: Solve for x
x = 120,107,345,093.88/391,762.96 - Step 6: Final answer
x = 306,581.68
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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.