Finding the Fourth Proportional to 207,612.60, 311,303.70 and 82,812.60
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Solution
The fourth proportional to 207,612.60, 311,303.70 and 82,812.60 is: 124,172.95
Step by Step Solution
- Step 1: Write the proportion equation
207,612.60 : 311,303.70 = 82,812.60 : x - Step 2: Convert to fraction form
207,612.60/311,303.70 = 82,812.60/x - Step 3: Cross multiply
207,612.60x = 311,303.70 × 82,812.60 - Step 4: Simplify right side
207,612.60x = 25,779,868,786.62 - Step 5: Solve for x
x = 25,779,868,786.62/207,612.60 - Step 6: Final answer
x = 124,172.95
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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.