Finding the Fourth Proportional to 208,854.36, 288,219.33 and 113,361.08
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Solution
The fourth proportional to 208,854.36, 288,219.33 and 113,361.08 is: 156,438.45
Step by Step Solution
- Step 1: Write the proportion equation
208,854.36 : 288,219.33 = 113,361.08 : x - Step 2: Convert to fraction form
208,854.36/288,219.33 = 113,361.08/x - Step 3: Cross multiply
208,854.36x = 288,219.33 × 113,361.08 - Step 4: Simplify right side
208,854.36x = 32,672,853,084.58 - Step 5: Solve for x
x = 32,672,853,084.58/208,854.36 - Step 6: Final answer
x = 156,438.45
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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.