Finding the Fourth Proportional to 228,785.75, 343,272.61 and 100,636.05
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Solution
The fourth proportional to 228,785.75, 343,272.61 and 100,636.05 is: 150,995.42
Step by Step Solution
- Step 1: Write the proportion equation
228,785.75 : 343,272.61 = 100,636.05 : x - Step 2: Convert to fraction form
228,785.75/343,272.61 = 100,636.05/x - Step 3: Cross multiply
228,785.75x = 343,272.61 × 100,636.05 - Step 4: Simplify right side
228,785.75x = 34,545,599,543.59 - Step 5: Solve for x
x = 34,545,599,543.59/228,785.75 - Step 6: Final answer
x = 150,995.42
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.