Finding the Fourth Proportional to 290,138.14, 400,287.99 and 189,594.46
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Solution
The fourth proportional to 290,138.14, 400,287.99 and 189,594.46 is: 261,573.28
Step by Step Solution
- Step 1: Write the proportion equation
290,138.14 : 400,287.99 = 189,594.46 : x - Step 2: Convert to fraction form
290,138.14/400,287.99 = 189,594.46/x - Step 3: Cross multiply
290,138.14x = 400,287.99 × 189,594.46 - Step 4: Simplify right side
290,138.14x = 75,892,385,308.54 - Step 5: Solve for x
x = 75,892,385,308.54/290,138.14 - Step 6: Final answer
x = 261,573.28
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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.