Finding the Fourth Proportional to 305,571.21, 421,681.92 and 169,597.19
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Solution
The fourth proportional to 305,571.21, 421,681.92 and 169,597.19 is: 234,040.59
Step by Step Solution
- Step 1: Write the proportion equation
305,571.21 : 421,681.92 = 169,597.19 : x - Step 2: Convert to fraction form
305,571.21/421,681.92 = 169,597.19/x - Step 3: Cross multiply
305,571.21x = 421,681.92 × 169,597.19 - Step 4: Simplify right side
305,571.21x = 71,516,066,597.40 - Step 5: Solve for x
x = 71,516,066,597.40/305,571.21 - Step 6: Final answer
x = 234,040.59
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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.