Finding the Fourth Proportional to 216,562.40, 324,832.08 and 68,806.88
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Solution
The fourth proportional to 216,562.40, 324,832.08 and 68,806.88 is: 103,206.66
Step by Step Solution
- Step 1: Write the proportion equation
216,562.40 : 324,832.08 = 68,806.88 : x - Step 2: Convert to fraction form
216,562.40/324,832.08 = 68,806.88/x - Step 3: Cross multiply
216,562.40x = 324,832.08 × 68,806.88 - Step 4: Simplify right side
216,562.40x = 22,350,681,948.71 - Step 5: Solve for x
x = 22,350,681,948.71/216,562.40 - Step 6: Final answer
x = 103,206.66
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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.