Finding the Fourth Proportional to 247,989.64, 371,976.20 and 107,748.26
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Solution
The fourth proportional to 247,989.64, 371,976.20 and 107,748.26 is: 161,618.80
Step by Step Solution
- Step 1: Write the proportion equation
247,989.64 : 371,976.20 = 107,748.26 : x - Step 2: Convert to fraction form
247,989.64/371,976.20 = 107,748.26/x - Step 3: Cross multiply
247,989.64x = 371,976.20 × 107,748.26 - Step 4: Simplify right side
247,989.64x = 40,079,788,311.41 - Step 5: Solve for x
x = 40,079,788,311.41/247,989.64 - Step 6: Final answer
x = 161,618.80
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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.