Finding the Fourth Proportional to 208,911.36, 288,298.26 and 113,418.48
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Solution
The fourth proportional to 208,911.36, 288,298.26 and 113,418.48 is: 156,517.82
Step by Step Solution
- Step 1: Write the proportion equation
208,911.36 : 288,298.26 = 113,418.48 : x - Step 2: Convert to fraction form
208,911.36/288,298.26 = 113,418.48/x - Step 3: Cross multiply
208,911.36x = 288,298.26 × 113,418.48 - Step 4: Simplify right side
208,911.36x = 32,698,350,435.84 - Step 5: Solve for x
x = 32,698,350,435.84/208,911.36 - Step 6: Final answer
x = 156,517.82
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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.