Finding the Fourth Proportional to 274,342.95, 378,722.70 and 206,385.80
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Solution
The fourth proportional to 274,342.95, 378,722.70 and 206,385.80 is: 284,909.77
Step by Step Solution
- Step 1: Write the proportion equation
274,342.95 : 378,722.70 = 206,385.80 : x - Step 2: Convert to fraction form
274,342.95/378,722.70 = 206,385.80/x - Step 3: Cross multiply
274,342.95x = 378,722.70 × 206,385.80 - Step 4: Simplify right side
274,342.95x = 78,162,985,524.05 - Step 5: Solve for x
x = 78,162,985,524.05/274,342.95 - Step 6: Final answer
x = 284,909.77
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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.