Finding the Fourth Proportional to 207,618.07, 311,427.05 and 118,808.80
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Solution
The fourth proportional to 207,618.07, 311,427.05 and 118,808.80 is: 178,213.17
Step by Step Solution
- Step 1: Write the proportion equation
207,618.07 : 311,427.05 = 118,808.80 : x - Step 2: Convert to fraction form
207,618.07/311,427.05 = 118,808.80/x - Step 3: Cross multiply
207,618.07x = 311,427.05 × 118,808.80 - Step 4: Simplify right side
207,618.07x = 37,000,274,098.04 - Step 5: Solve for x
x = 37,000,274,098.04/207,618.07 - Step 6: Final answer
x = 178,213.17
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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.