Finding the Fourth Proportional to 290,979.92, 402,273.96 and 288,323.12
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Solution
The fourth proportional to 290,979.92, 402,273.96 and 288,323.12 is: 398,600.99
Step by Step Solution
- Step 1: Write the proportion equation
290,979.92 : 402,273.96 = 288,323.12 : x - Step 2: Convert to fraction form
290,979.92/402,273.96 = 288,323.12/x - Step 3: Cross multiply
290,979.92x = 402,273.96 × 288,323.12 - Step 4: Simplify right side
290,979.92x = 115,984,883,241.96 - Step 5: Solve for x
x = 115,984,883,241.96/290,979.92 - Step 6: Final answer
x = 398,600.99
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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.