Finding the Fourth Proportional to 324,474.69, 486,729.36 and 99,989.31
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Solution
The fourth proportional to 324,474.69, 486,729.36 and 99,989.31 is: 149,989.30
Step by Step Solution
- Step 1: Write the proportion equation
324,474.69 : 486,729.36 = 99,989.31 : x - Step 2: Convert to fraction form
324,474.69/486,729.36 = 99,989.31/x - Step 3: Cross multiply
324,474.69x = 486,729.36 × 99,989.31 - Step 4: Simplify right side
324,474.69x = 48,667,732,863.14 - Step 5: Solve for x
x = 48,667,732,863.14/324,474.69 - Step 6: Final answer
x = 149,989.30
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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.