Finding the Fourth Proportional to 208,192.74, 312,288.09 and 50,421.19
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Solution
The fourth proportional to 208,192.74, 312,288.09 and 50,421.19 is: 75,631.54
Step by Step Solution
- Step 1: Write the proportion equation
208,192.74 : 312,288.09 = 50,421.19 : x - Step 2: Convert to fraction form
208,192.74/312,288.09 = 50,421.19/x - Step 3: Cross multiply
208,192.74x = 312,288.09 × 50,421.19 - Step 4: Simplify right side
208,192.74x = 15,745,937,120.63 - Step 5: Solve for x
x = 15,745,937,120.63/208,192.74 - Step 6: Final answer
x = 75,631.54
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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.