Finding the Fourth Proportional to 305,021.26, 420,924.30 and 169,054.78
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Solution
The fourth proportional to 305,021.26, 420,924.30 and 169,054.78 is: 233,292.80
Step by Step Solution
- Step 1: Write the proportion equation
305,021.26 : 420,924.30 = 169,054.78 : x - Step 2: Convert to fraction form
305,021.26/420,924.30 = 169,054.78/x - Step 3: Cross multiply
305,021.26x = 420,924.30 × 169,054.78 - Step 4: Simplify right side
305,021.26x = 71,159,264,933.15 - Step 5: Solve for x
x = 71,159,264,933.15/305,021.26 - Step 6: Final answer
x = 233,292.80
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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.