Finding the Fourth Proportional to 372,145.76, 558,367.68 and 135,504.80
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Solution
The fourth proportional to 372,145.76, 558,367.68 and 135,504.80 is: 203,311.47
Step by Step Solution
- Step 1: Write the proportion equation
372,145.76 : 558,367.68 = 135,504.80 : x - Step 2: Convert to fraction form
372,145.76/558,367.68 = 135,504.80/x - Step 3: Cross multiply
372,145.76x = 558,367.68 × 135,504.80 - Step 4: Simplify right side
372,145.76x = 75,661,500,804.86 - Step 5: Solve for x
x = 75,661,500,804.86/372,145.76 - Step 6: Final answer
x = 203,311.47
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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.