Finding the Fourth Proportional to 203,628.56, 305,369.64 and 70,472.68
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Solution
The fourth proportional to 203,628.56, 305,369.64 and 70,472.68 is: 105,683.69
Step by Step Solution
- Step 1: Write the proportion equation
203,628.56 : 305,369.64 = 70,472.68 : x - Step 2: Convert to fraction form
203,628.56/305,369.64 = 70,472.68/x - Step 3: Cross multiply
203,628.56x = 305,369.64 × 70,472.68 - Step 4: Simplify right side
203,628.56x = 21,520,216,921.44 - Step 5: Solve for x
x = 21,520,216,921.44/203,628.56 - Step 6: Final answer
x = 105,683.69
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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.