Finding the Fourth Proportional to 278,481.97, 384,305.43 and 151,157.53
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Solution
The fourth proportional to 278,481.97, 384,305.43 and 151,157.53 is: 208,597.56
Step by Step Solution
- Step 1: Write the proportion equation
278,481.97 : 384,305.43 = 151,157.53 : x - Step 2: Convert to fraction form
278,481.97/384,305.43 = 151,157.53/x - Step 3: Cross multiply
278,481.97x = 384,305.43 × 151,157.53 - Step 4: Simplify right side
278,481.97x = 58,090,659,564.39 - Step 5: Solve for x
x = 58,090,659,564.39/278,481.97 - Step 6: Final answer
x = 208,597.56
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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.