Finding the Fourth Proportional to 305,211.44, 421,194.15 and 169,237.44
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Solution
The fourth proportional to 305,211.44, 421,194.15 and 169,237.44 is: 233,548.98
Step by Step Solution
- Step 1: Write the proportion equation
305,211.44 : 421,194.15 = 169,237.44 : x - Step 2: Convert to fraction form
305,211.44/421,194.15 = 169,237.44/x - Step 3: Cross multiply
305,211.44x = 421,194.15 × 169,237.44 - Step 4: Simplify right side
305,211.44x = 71,281,819,688.98 - Step 5: Solve for x
x = 71,281,819,688.98/305,211.44 - Step 6: Final answer
x = 233,548.98
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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.