Finding the Fourth Proportional to 317,471.84, 438,247.79 and 194,984.06
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Solution
The fourth proportional to 317,471.84, 438,247.79 and 194,984.06 is: 269,161.93
Step by Step Solution
- Step 1: Write the proportion equation
317,471.84 : 438,247.79 = 194,984.06 : x - Step 2: Convert to fraction form
317,471.84/438,247.79 = 194,984.06/x - Step 3: Cross multiply
317,471.84x = 438,247.79 × 194,984.06 - Step 4: Simplify right side
317,471.84x = 85,451,333,380.23 - Step 5: Solve for x
x = 85,451,333,380.23/317,471.84 - Step 6: Final answer
x = 269,161.93
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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.