Finding the Fourth Proportional to 203,179.69, 280,403.75 and 112,544.09
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Solution
The fourth proportional to 203,179.69, 280,403.75 and 112,544.09 is: 155,319.58
Step by Step Solution
- Step 1: Write the proportion equation
203,179.69 : 280,403.75 = 112,544.09 : x - Step 2: Convert to fraction form
203,179.69/280,403.75 = 112,544.09/x - Step 3: Cross multiply
203,179.69x = 280,403.75 × 112,544.09 - Step 4: Simplify right side
203,179.69x = 31,557,784,155.19 - Step 5: Solve for x
x = 31,557,784,155.19/203,179.69 - Step 6: Final answer
x = 155,319.58
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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.