Finding the Fourth Proportional to 305,412.13, 421,454.46 and 169,444.63
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Solution
The fourth proportional to 305,412.13, 421,454.46 and 169,444.63 is: 233,825.67
Step by Step Solution
- Step 1: Write the proportion equation
305,412.13 : 421,454.46 = 169,444.63 : x - Step 2: Convert to fraction form
305,412.13/421,454.46 = 169,444.63/x - Step 3: Cross multiply
305,412.13x = 421,454.46 × 169,444.63 - Step 4: Simplify right side
305,412.13x = 71,413,195,036.55 - Step 5: Solve for x
x = 71,413,195,036.55/305,412.13 - Step 6: Final answer
x = 233,825.67
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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.