Finding the Fourth Proportional to 376,072.80, 518,977.42 and 203,990.32
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Solution
The fourth proportional to 376,072.80, 518,977.42 and 203,990.32 is: 281,504.99
Step by Step Solution
- Step 1: Write the proportion equation
376,072.80 : 518,977.42 = 203,990.32 : x - Step 2: Convert to fraction form
376,072.80/518,977.42 = 203,990.32/x - Step 3: Cross multiply
376,072.80x = 518,977.42 × 203,990.32 - Step 4: Simplify right side
376,072.80x = 105,866,369,978.57 - Step 5: Solve for x
x = 105,866,369,978.57/376,072.80 - Step 6: Final answer
x = 281,504.99
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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.