Finding the Fourth Proportional to 313,930.13, 434,364.48 and 273,727.62
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Solution
The fourth proportional to 313,930.13, 434,364.48 and 273,727.62 is: 378,738.92
Step by Step Solution
- Step 1: Write the proportion equation
313,930.13 : 434,364.48 = 273,727.62 : x - Step 2: Convert to fraction form
313,930.13/434,364.48 = 273,727.62/x - Step 3: Cross multiply
313,930.13x = 434,364.48 × 273,727.62 - Step 4: Simplify right side
313,930.13x = 118,897,555,322.94 - Step 5: Solve for x
x = 118,897,555,322.94/313,930.13 - Step 6: Final answer
x = 378,738.92
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1.5x scale
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.