Finding the Fourth Proportional to 216,571.79, 324,885.68 and 83,490.11
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Solution
The fourth proportional to 216,571.79, 324,885.68 and 83,490.11 is: 125,245.95
Step by Step Solution
- Step 1: Write the proportion equation
216,571.79 : 324,885.68 = 83,490.11 : x - Step 2: Convert to fraction form
216,571.79/324,885.68 = 83,490.11/x - Step 3: Cross multiply
216,571.79x = 324,885.68 × 83,490.11 - Step 4: Simplify right side
216,571.79x = 27,124,739,118.75 - Step 5: Solve for x
x = 27,124,739,118.75/216,571.79 - Step 6: Final answer
x = 125,245.95
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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.