Finding the Fourth Proportional to 391,283.75, 587,125.79 and 186,350.42
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Solution
The fourth proportional to 391,283.75, 587,125.79 and 186,350.42 is: 279,620.96
Step by Step Solution
- Step 1: Write the proportion equation
391,283.75 : 587,125.79 = 186,350.42 : x - Step 2: Convert to fraction form
391,283.75/587,125.79 = 186,350.42/x - Step 3: Cross multiply
391,283.75x = 587,125.79 × 186,350.42 - Step 4: Simplify right side
391,283.75x = 109,411,137,559.33 - Step 5: Solve for x
x = 109,411,137,559.33/391,283.75 - Step 6: Final answer
x = 279,620.96
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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.