Finding the Fourth Proportional to 208,854.80, 288,219.98 and 113,361.52
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Solution
The fourth proportional to 208,854.80, 288,219.98 and 113,361.52 is: 156,439.09
Step by Step Solution
- Step 1: Write the proportion equation
208,854.80 : 288,219.98 = 113,361.52 : x - Step 2: Convert to fraction form
208,854.80/288,219.98 = 113,361.52/x - Step 3: Cross multiply
208,854.80x = 288,219.98 × 113,361.52 - Step 4: Simplify right side
208,854.80x = 32,673,055,027.17 - Step 5: Solve for x
x = 32,673,055,027.17/208,854.80 - Step 6: Final answer
x = 156,439.09
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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.