Finding the Fourth Proportional to 208,989.64, 288,406.26 and 113,497.96
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Solution
The fourth proportional to 208,989.64, 288,406.26 and 113,497.96 is: 156,627.49
Step by Step Solution
- Step 1: Write the proportion equation
208,989.64 : 288,406.26 = 113,497.96 : x - Step 2: Convert to fraction form
208,989.64/288,406.26 = 113,497.96/x - Step 3: Cross multiply
208,989.64x = 288,406.26 × 113,497.96 - Step 4: Simplify right side
208,989.64x = 32,733,522,161.23 - Step 5: Solve for x
x = 32,733,522,161.23/208,989.64 - Step 6: Final answer
x = 156,627.49
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.