Finding the Fourth Proportional to 311,759.96, 430,192.18 and 175,785.80
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Solution
The fourth proportional to 311,759.96, 430,192.18 and 175,785.80 is: 242,563.79
Step by Step Solution
- Step 1: Write the proportion equation
311,759.96 : 430,192.18 = 175,785.80 : x - Step 2: Convert to fraction form
311,759.96/430,192.18 = 175,785.80/x - Step 3: Cross multiply
311,759.96x = 430,192.18 × 175,785.80 - Step 4: Simplify right side
311,759.96x = 75,621,677,003.65 - Step 5: Solve for x
x = 75,621,677,003.65/311,759.96 - Step 6: Final answer
x = 242,563.79
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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.