Finding the Fourth Proportional to 311,122.95, 429,237.39 and 203,754.21
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Solution
The fourth proportional to 311,122.95, 429,237.39 and 203,754.21 is: 281,107.28
Step by Step Solution
- Step 1: Write the proportion equation
311,122.95 : 429,237.39 = 203,754.21 : x - Step 2: Convert to fraction form
311,122.95/429,237.39 = 203,754.21/x - Step 3: Cross multiply
311,122.95x = 429,237.39 × 203,754.21 - Step 4: Simplify right side
311,122.95x = 87,458,925,301.91 - Step 5: Solve for x
x = 87,458,925,301.91/311,122.95 - Step 6: Final answer
x = 281,107.28
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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.