Finding the Fourth Proportional to 421,693.05, 581,942.97 and 230,709.63
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Solution
The fourth proportional to 421,693.05, 581,942.97 and 230,709.63 is: 318,382.88
Step by Step Solution
- Step 1: Write the proportion equation
421,693.05 : 581,942.97 = 230,709.63 : x - Step 2: Convert to fraction form
421,693.05/581,942.97 = 230,709.63/x - Step 3: Cross multiply
421,693.05x = 581,942.97 × 230,709.63 - Step 4: Simplify right side
421,693.05x = 134,259,847,289.80 - Step 5: Solve for x
x = 134,259,847,289.80/421,693.05 - Step 6: Final answer
x = 318,382.88
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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.