Finding the Fourth Proportional to 207,983.28, 312,149.86 and 194,861.28
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Solution
The fourth proportional to 207,983.28, 312,149.86 and 194,861.28 is: 292,455.82
Step by Step Solution
- Step 1: Write the proportion equation
207,983.28 : 312,149.86 = 194,861.28 : x - Step 2: Convert to fraction form
207,983.28/312,149.86 = 194,861.28/x - Step 3: Cross multiply
207,983.28x = 312,149.86 × 194,861.28 - Step 4: Simplify right side
207,983.28x = 60,825,921,271.42 - Step 5: Solve for x
x = 60,825,921,271.42/207,983.28 - Step 6: Final answer
x = 292,455.82
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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.