Finding the Fourth Proportional to 324,549.18, 486,869.84 and 99,928.28
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Solution
The fourth proportional to 324,549.18, 486,869.84 and 99,928.28 is: 149,906.61
Step by Step Solution
- Step 1: Write the proportion equation
324,549.18 : 486,869.84 = 99,928.28 : x - Step 2: Convert to fraction form
324,549.18/486,869.84 = 99,928.28/x - Step 3: Cross multiply
324,549.18x = 486,869.84 × 99,928.28 - Step 4: Simplify right side
324,549.18x = 48,652,067,162.07 - Step 5: Solve for x
x = 48,652,067,162.07/324,549.18 - Step 6: Final answer
x = 149,906.61
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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.