Finding the Fourth Proportional to 324,438.10, 486,703.73 and 99,817.41
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Solution
The fourth proportional to 324,438.10, 486,703.73 and 99,817.41 is: 149,740.45
Step by Step Solution
- Step 1: Write the proportion equation
324,438.10 : 486,703.73 = 99,817.41 : x - Step 2: Convert to fraction form
324,438.10/486,703.73 = 99,817.41/x - Step 3: Cross multiply
324,438.10x = 486,703.73 × 99,817.41 - Step 4: Simplify right side
324,438.10x = 48,581,505,765.94 - Step 5: Solve for x
x = 48,581,505,765.94/324,438.10 - Step 6: Final answer
x = 149,740.45
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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.