Finding the Fourth Proportional to 278,045.97, 383,699.37 and 157,183.26
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Solution
The fourth proportional to 278,045.97, 383,699.37 and 157,183.26 is: 216,910.60
Step by Step Solution
- Step 1: Write the proportion equation
278,045.97 : 383,699.37 = 157,183.26 : x - Step 2: Convert to fraction form
278,045.97/383,699.37 = 157,183.26/x - Step 3: Cross multiply
278,045.97x = 383,699.37 × 157,183.26 - Step 4: Simplify right side
278,045.97x = 60,311,117,836.55 - Step 5: Solve for x
x = 60,311,117,836.55/278,045.97 - Step 6: Final answer
x = 216,910.60
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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.