Finding the Fourth Proportional to 203,720.64, 305,576.16 and 120,011.68
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Solution
The fourth proportional to 203,720.64, 305,576.16 and 120,011.68 is: 180,014.69
Step by Step Solution
- Step 1: Write the proportion equation
203,720.64 : 305,576.16 = 120,011.68 : x - Step 2: Convert to fraction form
203,720.64/305,576.16 = 120,011.68/x - Step 3: Cross multiply
203,720.64x = 305,576.16 × 120,011.68 - Step 4: Simplify right side
203,720.64x = 36,672,708,329.55 - Step 5: Solve for x
x = 36,672,708,329.55/203,720.64 - Step 6: Final answer
x = 180,014.69
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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.