Finding the Fourth Proportional to 305,337.13, 421,371.99 and 169,366.65
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Solution
The fourth proportional to 305,337.13, 421,371.99 and 169,366.65 is: 233,729.72
Step by Step Solution
- Step 1: Write the proportion equation
305,337.13 : 421,371.99 = 169,366.65 : x - Step 2: Convert to fraction form
305,337.13/421,371.99 = 169,366.65/x - Step 3: Cross multiply
305,337.13x = 421,371.99 × 169,366.65 - Step 4: Simplify right side
305,337.13x = 71,366,360,769.99 - Step 5: Solve for x
x = 71,366,360,769.99/305,337.13 - Step 6: Final answer
x = 233,729.72
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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.