Finding the Fourth Proportional to 278,463.37, 384,279.74 and 151,138.99
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Solution
The fourth proportional to 278,463.37, 384,279.74 and 151,138.99 is: 208,571.96
Step by Step Solution
- Step 1: Write the proportion equation
278,463.37 : 384,279.74 = 151,138.99 : x - Step 2: Convert to fraction form
278,463.37/384,279.74 = 151,138.99/x - Step 3: Cross multiply
278,463.37x = 384,279.74 × 151,138.99 - Step 4: Simplify right side
278,463.37x = 58,079,651,025.37 - Step 5: Solve for x
x = 58,079,651,025.37/278,463.37 - Step 6: Final answer
x = 208,571.96
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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.