Finding the Fourth Proportional to 219,783.42, 303,360.26 and 129,200.09
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Solution
The fourth proportional to 219,783.42, 303,360.26 and 129,200.09 is: 178,330.88
Step by Step Solution
- Step 1: Write the proportion equation
219,783.42 : 303,360.26 = 129,200.09 : x - Step 2: Convert to fraction form
219,783.42/303,360.26 = 129,200.09/x - Step 3: Cross multiply
219,783.42x = 303,360.26 × 129,200.09 - Step 4: Simplify right side
219,783.42x = 39,194,170,731.62 - Step 5: Solve for x
x = 39,194,170,731.62/219,783.42 - Step 6: Final answer
x = 178,330.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.