Finding the Fourth Proportional to 305,137.53, 421,133.38 and 169,201.71
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Solution
The fourth proportional to 305,137.53, 421,133.38 and 169,201.71 is: 233,522.53
Step by Step Solution
- Step 1: Write the proportion equation
305,137.53 : 421,133.38 = 169,201.71 : x - Step 2: Convert to fraction form
305,137.53/421,133.38 = 169,201.71/x - Step 3: Cross multiply
305,137.53x = 421,133.38 × 169,201.71 - Step 4: Simplify right side
305,137.53x = 71,256,487,611.08 - Step 5: Solve for x
x = 71,256,487,611.08/305,137.53 - Step 6: Final answer
x = 233,522.53
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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.