Finding the Fourth Proportional to 278,804.08, 384,751.36 and 151,479.60
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Solution
The fourth proportional to 278,804.08, 384,751.36 and 151,479.60 is: 209,042.79
Step by Step Solution
- Step 1: Write the proportion equation
278,804.08 : 384,751.36 = 151,479.60 : x - Step 2: Convert to fraction form
278,804.08/384,751.36 = 151,479.60/x - Step 3: Cross multiply
278,804.08x = 384,751.36 × 151,479.60 - Step 4: Simplify right side
278,804.08x = 58,281,982,112.26 - Step 5: Solve for x
x = 58,281,982,112.26/278,804.08 - Step 6: Final answer
x = 209,042.79
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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.