Finding the Fourth Proportional to 305,485.08, 421,568.52 and 169,539.54
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Solution
The fourth proportional to 305,485.08, 421,568.52 and 169,539.54 is: 233,964.07
Step by Step Solution
- Step 1: Write the proportion equation
305,485.08 : 421,568.52 = 169,539.54 : x - Step 2: Convert to fraction form
305,485.08/421,568.52 = 169,539.54/x - Step 3: Cross multiply
305,485.08x = 421,568.52 × 169,539.54 - Step 4: Simplify right side
305,485.08x = 71,472,532,959.28 - Step 5: Solve for x
x = 71,472,532,959.28/305,485.08 - Step 6: Final answer
x = 233,964.07
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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.