Finding the Fourth Proportional to 278,800.26, 384,731.82 and 157,939.08
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Solution
The fourth proportional to 278,800.26, 384,731.82 and 157,939.08 is: 217,948.83
Step by Step Solution
- Step 1: Write the proportion equation
278,800.26 : 384,731.82 = 157,939.08 : x - Step 2: Convert to fraction form
278,800.26/384,731.82 = 157,939.08/x - Step 3: Cross multiply
278,800.26x = 384,731.82 × 157,939.08 - Step 4: Simplify right side
278,800.26x = 60,764,189,697.53 - Step 5: Solve for x
x = 60,764,189,697.53/278,800.26 - Step 6: Final answer
x = 217,948.83
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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.