Finding the Fourth Proportional to 305,134.24, 421,110.09 and 169,210.75
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Solution
The fourth proportional to 305,134.24, 421,110.09 and 169,210.75 is: 233,524.61
Step by Step Solution
- Step 1: Write the proportion equation
305,134.24 : 421,110.09 = 169,210.75 : x - Step 2: Convert to fraction form
305,134.24/421,110.09 = 169,210.75/x - Step 3: Cross multiply
305,134.24x = 421,110.09 × 169,210.75 - Step 4: Simplify right side
305,134.24x = 71,256,354,161.47 - Step 5: Solve for x
x = 71,256,354,161.47/305,134.24 - Step 6: Final answer
x = 233,524.61
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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.