Finding the Fourth Proportional to 305,493.51, 421,588.74 and 169,533.19
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Solution
The fourth proportional to 305,493.51, 421,588.74 and 169,533.19 is: 233,960.07
Step by Step Solution
- Step 1: Write the proportion equation
305,493.51 : 421,588.74 = 169,533.19 : x - Step 2: Convert to fraction form
305,493.51/421,588.74 = 169,533.19/x - Step 3: Cross multiply
305,493.51x = 421,588.74 × 169,533.19 - Step 4: Simplify right side
305,493.51x = 71,473,283,960.28 - Step 5: Solve for x
x = 71,473,283,960.28/305,493.51 - Step 6: Final answer
x = 233,960.07
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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.