Finding the Fourth Proportional to 278,143.96, 416,858.28 and 126,230.08
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Solution
The fourth proportional to 278,143.96, 416,858.28 and 126,230.08 is: 189,182.80
Step by Step Solution
- Step 1: Write the proportion equation
278,143.96 : 416,858.28 = 126,230.08 : x - Step 2: Convert to fraction form
278,143.96/416,858.28 = 126,230.08/x - Step 3: Cross multiply
278,143.96x = 416,858.28 × 126,230.08 - Step 4: Simplify right side
278,143.96x = 52,620,054,033.06 - Step 5: Solve for x
x = 52,620,054,033.06/278,143.96 - Step 6: Final answer
x = 189,182.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.