Finding the Fourth Proportional to 312,245.60, 468,222.36 and 112,539.68
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Solution
The fourth proportional to 312,245.60, 468,222.36 and 112,539.68 is: 168,756.88
Step by Step Solution
- Step 1: Write the proportion equation
312,245.60 : 468,222.36 = 112,539.68 : x - Step 2: Convert to fraction form
312,245.60/468,222.36 = 112,539.68/x - Step 3: Cross multiply
312,245.60x = 468,222.36 × 112,539.68 - Step 4: Simplify right side
312,245.60x = 52,693,594,563.24 - Step 5: Solve for x
x = 52,693,594,563.24/312,245.60 - Step 6: Final answer
x = 168,756.88
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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.