Finding the Fourth Proportional to 312,706.26, 431,533.98 and 169,469.82
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Solution
The fourth proportional to 312,706.26, 431,533.98 and 169,469.82 is: 233,867.99
Step by Step Solution
- Step 1: Write the proportion equation
312,706.26 : 431,533.98 = 169,469.82 : x - Step 2: Convert to fraction form
312,706.26/431,533.98 = 169,469.82/x - Step 3: Cross multiply
312,706.26x = 431,533.98 × 169,469.82 - Step 4: Simplify right side
312,706.26x = 73,131,985,914.48 - Step 5: Solve for x
x = 73,131,985,914.48/312,706.26 - Step 6: Final answer
x = 233,867.99
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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.