Finding the Fourth Proportional to 207,511.10, 311,030.53 and 126,278.96
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Solution
The fourth proportional to 207,511.10, 311,030.53 and 126,278.96 is: 189,274.75
Step by Step Solution
- Step 1: Write the proportion equation
207,511.10 : 311,030.53 = 126,278.96 : x - Step 2: Convert to fraction form
207,511.10/311,030.53 = 126,278.96/x - Step 3: Cross multiply
207,511.10x = 311,030.53 × 126,278.96 - Step 4: Simplify right side
207,511.10x = 39,276,611,225.25 - Step 5: Solve for x
x = 39,276,611,225.25/207,511.10 - Step 6: Final answer
x = 189,274.75
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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.