Finding the Fourth Proportional to 305,415.63, 421,459.29 and 169,448.13
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Solution
The fourth proportional to 305,415.63, 421,459.29 and 169,448.13 is: 233,830.50
Step by Step Solution
- Step 1: Write the proportion equation
305,415.63 : 421,459.29 = 169,448.13 : x - Step 2: Convert to fraction form
305,415.63/421,459.29 = 169,448.13/x - Step 3: Cross multiply
305,415.63x = 421,459.29 × 169,448.13 - Step 4: Simplify right side
305,415.63x = 71,415,488,561.63 - Step 5: Solve for x
x = 71,415,488,561.63/305,415.63 - Step 6: Final answer
x = 233,830.50
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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.