Finding the Fourth Proportional to 203,291.95, 280,538.70 and 112,647.12
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Solution
The fourth proportional to 203,291.95, 280,538.70 and 112,647.12 is: 155,450.70
Step by Step Solution
- Step 1: Write the proportion equation
203,291.95 : 280,538.70 = 112,647.12 : x - Step 2: Convert to fraction form
203,291.95/280,538.70 = 112,647.12/x - Step 3: Cross multiply
203,291.95x = 280,538.70 × 112,647.12 - Step 4: Simplify right side
203,291.95x = 31,601,876,603.54 - Step 5: Solve for x
x = 31,601,876,603.54/203,291.95 - Step 6: Final answer
x = 155,450.70
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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.