Finding the Fourth Proportional to 278,149.08, 417,039.27 and 100,632.99
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Solution
The fourth proportional to 278,149.08, 417,039.27 and 100,632.99 is: 150,882.79
Step by Step Solution
- Step 1: Write the proportion equation
278,149.08 : 417,039.27 = 100,632.99 : x - Step 2: Convert to fraction form
278,149.08/417,039.27 = 100,632.99/x - Step 3: Cross multiply
278,149.08x = 417,039.27 × 100,632.99 - Step 4: Simplify right side
278,149.08x = 41,967,908,687.52 - Step 5: Solve for x
x = 41,967,908,687.52/278,149.08 - Step 6: Final answer
x = 150,882.79
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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.