Finding the Fourth Proportional to 203,475.57, 280,791.12 and 112,830.09
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Solution
The fourth proportional to 203,475.57, 280,791.12 and 112,830.09 is: 155,702.66
Step by Step Solution
- Step 1: Write the proportion equation
203,475.57 : 280,791.12 = 112,830.09 : x - Step 2: Convert to fraction form
203,475.57/280,791.12 = 112,830.09/x - Step 3: Cross multiply
203,475.57x = 280,791.12 × 112,830.09 - Step 4: Simplify right side
203,475.57x = 31,681,687,340.80 - Step 5: Solve for x
x = 31,681,687,340.80/203,475.57 - Step 6: Final answer
x = 155,702.66
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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.