Finding the Fourth Proportional to 203,218.88, 280,438.08 and 112,580.96
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Solution
The fourth proportional to 203,218.88, 280,438.08 and 112,580.96 is: 155,359.52
Step by Step Solution
- Step 1: Write the proportion equation
203,218.88 : 280,438.08 = 112,580.96 : x - Step 2: Convert to fraction form
203,218.88/280,438.08 = 112,580.96/x - Step 3: Cross multiply
203,218.88x = 280,438.08 × 112,580.96 - Step 4: Simplify right side
203,218.88x = 31,571,988,266.96 - Step 5: Solve for x
x = 31,571,988,266.96/203,218.88 - Step 6: Final answer
x = 155,359.52
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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.