Finding the Fourth Proportional to 275,297.76, 379,939.68 and 154,471.68
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Solution
The fourth proportional to 275,297.76, 379,939.68 and 154,471.68 is: 213,187.06
Step by Step Solution
- Step 1: Write the proportion equation
275,297.76 : 379,939.68 = 154,471.68 : x - Step 2: Convert to fraction form
275,297.76/379,939.68 = 154,471.68/x - Step 3: Cross multiply
275,297.76x = 379,939.68 × 154,471.68 - Step 4: Simplify right side
275,297.76x = 58,689,920,668.26 - Step 5: Solve for x
x = 58,689,920,668.26/275,297.76 - Step 6: Final answer
x = 213,187.06
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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.