Finding the Fourth Proportional to 421,193.21, 581,245.61 and 230,208.03
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Solution
The fourth proportional to 421,193.21, 581,245.61 and 230,208.03 is: 317,686.53
Step by Step Solution
- Step 1: Write the proportion equation
421,193.21 : 581,245.61 = 230,208.03 : x - Step 2: Convert to fraction form
421,193.21/581,245.61 = 230,208.03/x - Step 3: Cross multiply
421,193.21x = 581,245.61 × 230,208.03 - Step 4: Simplify right side
421,193.21x = 133,807,405,673.21 - Step 5: Solve for x
x = 133,807,405,673.21/421,193.21 - Step 6: Final answer
x = 317,686.53
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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.