Finding the Fourth Proportional to 192,420.32, 288,635.52 and 91,194.62
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Solution
The fourth proportional to 192,420.32, 288,635.52 and 91,194.62 is: 136,794.32
Step by Step Solution
- Step 1: Write the proportion equation
192,420.32 : 288,635.52 = 91,194.62 : x - Step 2: Convert to fraction form
192,420.32/288,635.52 = 91,194.62/x - Step 3: Cross multiply
192,420.32x = 288,635.52 × 91,194.62 - Step 4: Simplify right side
192,420.32x = 26,322,006,564.90 - Step 5: Solve for x
x = 26,322,006,564.90/192,420.32 - Step 6: Final answer
x = 136,794.32
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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.