Finding the Fourth Proportional to 305,551.19, 421,640.96 and 169,585.20
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Solution
The fourth proportional to 305,551.19, 421,640.96 and 169,585.20 is: 234,016.65
Step by Step Solution
- Step 1: Write the proportion equation
305,551.19 : 421,640.96 = 169,585.20 : x - Step 2: Convert to fraction form
305,551.19/421,640.96 = 169,585.20/x - Step 3: Cross multiply
305,551.19x = 421,640.96 × 169,585.20 - Step 4: Simplify right side
305,551.19x = 71,504,065,681.87 - Step 5: Solve for x
x = 71,504,065,681.87/305,551.19 - Step 6: Final answer
x = 234,016.65
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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.