Finding the Fourth Proportional to 312,902.86, 431,814.44 and 176,957.14
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Solution
The fourth proportional to 312,902.86, 431,814.44 and 176,957.14 is: 244,205.65
Step by Step Solution
- Step 1: Write the proportion equation
312,902.86 : 431,814.44 = 176,957.14 : x - Step 2: Convert to fraction form
312,902.86/431,814.44 = 176,957.14/x - Step 3: Cross multiply
312,902.86x = 431,814.44 × 176,957.14 - Step 4: Simplify right side
312,902.86x = 76,412,646,251.40 - Step 5: Solve for x
x = 76,412,646,251.40/312,902.86 - Step 6: Final answer
x = 244,205.65
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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.