Finding the Fourth Proportional to 274,252.36, 378,469.11 and 153,385.80
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Solution
The fourth proportional to 274,252.36, 378,469.11 and 153,385.80 is: 211,672.88
Step by Step Solution
- Step 1: Write the proportion equation
274,252.36 : 378,469.11 = 153,385.80 : x - Step 2: Convert to fraction form
274,252.36/378,469.11 = 153,385.80/x - Step 3: Cross multiply
274,252.36x = 378,469.11 × 153,385.80 - Step 4: Simplify right side
274,252.36x = 58,051,786,793.26 - Step 5: Solve for x
x = 58,051,786,793.26/274,252.36 - Step 6: Final answer
x = 211,672.88
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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.