Finding the Fourth Proportional to 305,227.18, 421,213.53 and 169,281.91
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Solution
The fourth proportional to 305,227.18, 421,213.53 and 169,281.91 is: 233,609.05
Step by Step Solution
- Step 1: Write the proportion equation
305,227.18 : 421,213.53 = 169,281.91 : x - Step 2: Convert to fraction form
305,227.18/421,213.53 = 169,281.91/x - Step 3: Cross multiply
305,227.18x = 421,213.53 × 169,281.91 - Step 4: Simplify right side
305,227.18x = 71,303,830,876.24 - Step 5: Solve for x
x = 71,303,830,876.24/305,227.18 - Step 6: Final answer
x = 233,609.05
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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.