Finding the Fourth Proportional to 208,855.24, 288,220.52 and 113,361.95
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Solution
The fourth proportional to 208,855.24, 288,220.52 and 113,361.95 is: 156,439.65
Step by Step Solution
- Step 1: Write the proportion equation
208,855.24 : 288,220.52 = 113,361.95 : x - Step 2: Convert to fraction form
208,855.24/288,220.52 = 113,361.95/x - Step 3: Cross multiply
208,855.24x = 288,220.52 × 113,361.95 - Step 4: Simplify right side
208,855.24x = 32,673,240,177.21 - Step 5: Solve for x
x = 32,673,240,177.21/208,855.24 - Step 6: Final answer
x = 156,439.65
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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.