Finding the Fourth Proportional to 207,387.70, 311,409.60 and 157,524.10
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Solution
The fourth proportional to 207,387.70, 311,409.60 and 157,524.10 is: 236,535.32
Step by Step Solution
- Step 1: Write the proportion equation
207,387.70 : 311,409.60 = 157,524.10 : x - Step 2: Convert to fraction form
207,387.70/311,409.60 = 157,524.10/x - Step 3: Cross multiply
207,387.70x = 311,409.60 × 157,524.10 - Step 4: Simplify right side
207,387.70x = 49,054,516,971.36 - Step 5: Solve for x
x = 49,054,516,971.36/207,387.70 - Step 6: Final answer
x = 236,535.32
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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.