Finding the Fourth Proportional to 305,318.57, 421,346.36 and 169,348.07
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Solution
The fourth proportional to 305,318.57, 421,346.36 and 169,348.07 is: 233,704.07
Step by Step Solution
- Step 1: Write the proportion equation
305,318.57 : 421,346.36 = 169,348.07 : x - Step 2: Convert to fraction form
305,318.57/421,346.36 = 169,348.07/x - Step 3: Cross multiply
305,318.57x = 421,346.36 × 169,348.07 - Step 4: Simplify right side
305,318.57x = 71,354,191,021.61 - Step 5: Solve for x
x = 71,354,191,021.61/305,318.57 - Step 6: Final answer
x = 233,704.07
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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.