Finding the Fourth Proportional to 305,291.20, 421,327.74 and 169,368.97
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Solution
The fourth proportional to 305,291.20, 421,327.74 and 169,368.97 is: 233,743.54
Step by Step Solution
- Step 1: Write the proportion equation
305,291.20 : 421,327.74 = 169,368.97 : x - Step 2: Convert to fraction form
305,291.20/421,327.74 = 169,368.97/x - Step 3: Cross multiply
305,291.20x = 421,327.74 × 169,368.97 - Step 4: Simplify right side
305,291.20x = 71,359,845,356.23 - Step 5: Solve for x
x = 71,359,845,356.23/305,291.20 - Step 6: Final answer
x = 233,743.54
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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.