Finding the Fourth Proportional to 278,121.24, 416,934.42 and 100,588.76
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Solution
The fourth proportional to 278,121.24, 416,934.42 and 100,588.76 is: 150,793.65
Step by Step Solution
- Step 1: Write the proportion equation
278,121.24 : 416,934.42 = 100,588.76 : x - Step 2: Convert to fraction form
278,121.24/416,934.42 = 100,588.76/x - Step 3: Cross multiply
278,121.24x = 416,934.42 × 100,588.76 - Step 4: Simplify right side
278,121.24x = 41,938,916,309.12 - Step 5: Solve for x
x = 41,938,916,309.12/278,121.24 - Step 6: Final answer
x = 150,793.65
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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.