Finding the Fourth Proportional to 151,340.92, 208,850.46 and 87,715.62
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Solution
The fourth proportional to 151,340.92, 208,850.46 and 87,715.62 is: 121,047.55
Step by Step Solution
- Step 1: Write the proportion equation
151,340.92 : 208,850.46 = 87,715.62 : x - Step 2: Convert to fraction form
151,340.92/208,850.46 = 87,715.62/x - Step 3: Cross multiply
151,340.92x = 208,850.46 × 87,715.62 - Step 4: Simplify right side
151,340.92x = 18,319,447,257.25 - Step 5: Solve for x
x = 18,319,447,257.25/151,340.92 - Step 6: Final answer
x = 121,047.55
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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.