Finding the Fourth Proportional to 312,972.26, 431,923.19 and 177,006.26
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Solution
The fourth proportional to 312,972.26, 431,923.19 and 177,006.26 is: 244,280.79
Step by Step Solution
- Step 1: Write the proportion equation
312,972.26 : 431,923.19 = 177,006.26 : x - Step 2: Convert to fraction form
312,972.26/431,923.19 = 177,006.26/x - Step 3: Cross multiply
312,972.26x = 431,923.19 × 177,006.26 - Step 4: Simplify right side
312,972.26x = 76,453,108,663.95 - Step 5: Solve for x
x = 76,453,108,663.95/312,972.26 - Step 6: Final answer
x = 244,280.79
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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.