Finding the Fourth Proportional to 311,718.96, 430,163.54 and 175,751.70
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Solution
The fourth proportional to 311,718.96, 430,163.54 and 175,751.70 is: 242,532.48
Step by Step Solution
- Step 1: Write the proportion equation
311,718.96 : 430,163.54 = 175,751.70 : x - Step 2: Convert to fraction form
311,718.96/430,163.54 = 175,751.70/x - Step 3: Cross multiply
311,718.96x = 430,163.54 × 175,751.70 - Step 4: Simplify right side
311,718.96x = 75,601,972,554.26 - Step 5: Solve for x
x = 75,601,972,554.26/311,718.96 - Step 6: Final answer
x = 242,532.48
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.