Finding the Fourth Proportional to 312,550.74, 431,322.03 and 169,310.66
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Solution
The fourth proportional to 312,550.74, 431,322.03 and 169,310.66 is: 233,649.79
Step by Step Solution
- Step 1: Write the proportion equation
312,550.74 : 431,322.03 = 169,310.66 : x - Step 2: Convert to fraction form
312,550.74/431,322.03 = 169,310.66/x - Step 3: Cross multiply
312,550.74x = 431,322.03 × 169,310.66 - Step 4: Simplify right side
312,550.74x = 73,027,415,415.23 - Step 5: Solve for x
x = 73,027,415,415.23/312,550.74 - Step 6: Final answer
x = 233,649.79
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1.5x scale
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.