Finding the Fourth Proportional to 274,639.59, 378,958.80 and 153,785.97
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Solution
The fourth proportional to 274,639.59, 378,958.80 and 153,785.97 is: 212,200.09
Step by Step Solution
- Step 1: Write the proportion equation
274,639.59 : 378,958.80 = 153,785.97 : x - Step 2: Convert to fraction form
274,639.59/378,958.80 = 153,785.97/x - Step 3: Cross multiply
274,639.59x = 378,958.80 × 153,785.97 - Step 4: Simplify right side
274,639.59x = 58,278,546,648.04 - Step 5: Solve for x
x = 58,278,546,648.04/274,639.59 - Step 6: Final answer
x = 212,200.09
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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.