Finding the Fourth Proportional to 192,198.30, 288,400.86 and 79,955.98
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Solution
The fourth proportional to 192,198.30, 288,400.86 and 79,955.98 is: 119,976.99
Step by Step Solution
- Step 1: Write the proportion equation
192,198.30 : 288,400.86 = 79,955.98 : x - Step 2: Convert to fraction form
192,198.30/288,400.86 = 79,955.98/x - Step 3: Cross multiply
192,198.30x = 288,400.86 × 79,955.98 - Step 4: Simplify right side
192,198.30x = 23,059,373,394.14 - Step 5: Solve for x
x = 23,059,373,394.14/192,198.30 - Step 6: Final answer
x = 119,976.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.