Finding the Fourth Proportional to 208,478.53, 312,717.80 and 50,707.09
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Solution
The fourth proportional to 208,478.53, 312,717.80 and 50,707.09 is: 76,060.64
Step by Step Solution
- Step 1: Write the proportion equation
208,478.53 : 312,717.80 = 50,707.09 : x - Step 2: Convert to fraction form
208,478.53/312,717.80 = 50,707.09/x - Step 3: Cross multiply
208,478.53x = 312,717.80 × 50,707.09 - Step 4: Simplify right side
208,478.53x = 15,857,009,375.67 - Step 5: Solve for x
x = 15,857,009,375.67/208,478.53 - Step 6: Final answer
x = 76,060.64
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1.5x scale
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.