Finding the Fourth Proportional to 192,208.32, 288,415.86 and 79,965.96
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Solution
The fourth proportional to 192,208.32, 288,415.86 and 79,965.96 is: 119,991.95
Step by Step Solution
- Step 1: Write the proportion equation
192,208.32 : 288,415.86 = 79,965.96 : x - Step 2: Convert to fraction form
192,208.32/288,415.86 = 79,965.96/x - Step 3: Cross multiply
192,208.32x = 288,415.86 × 79,965.96 - Step 4: Simplify right side
192,208.32x = 23,063,451,124.13 - Step 5: Solve for x
x = 23,063,451,124.13/192,208.32 - Step 6: Final answer
x = 119,991.95
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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.