Finding the Fourth Proportional to 252,578.13, 348,556.11 and 139,400.88
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Solution
The fourth proportional to 252,578.13, 348,556.11 and 139,400.88 is: 192,372.27
Step by Step Solution
- Step 1: Write the proportion equation
252,578.13 : 348,556.11 = 139,400.88 : x - Step 2: Convert to fraction form
252,578.13/348,556.11 = 139,400.88/x - Step 3: Cross multiply
252,578.13x = 348,556.11 × 139,400.88 - Step 4: Simplify right side
252,578.13x = 48,589,028,463.38 - Step 5: Solve for x
x = 48,589,028,463.38/252,578.13 - Step 6: Final answer
x = 192,372.27
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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.