Finding the Fourth Proportional to 324,420.47, 486,804.98 and 135,011.42
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Solution
The fourth proportional to 324,420.47, 486,804.98 and 135,011.42 is: 202,589.65
Step by Step Solution
- Step 1: Write the proportion equation
324,420.47 : 486,804.98 = 135,011.42 : x - Step 2: Convert to fraction form
324,420.47/486,804.98 = 135,011.42/x - Step 3: Cross multiply
324,420.47x = 486,804.98 × 135,011.42 - Step 4: Simplify right side
324,420.47x = 65,724,229,516.38 - Step 5: Solve for x
x = 65,724,229,516.38/324,420.47 - Step 6: Final answer
x = 202,589.65
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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.