Finding the Fourth Proportional to 339,630.21, 509,414.09 and 114,964.97
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Solution
The fourth proportional to 339,630.21, 509,414.09 and 114,964.97 is: 172,436.88
Step by Step Solution
- Step 1: Write the proportion equation
339,630.21 : 509,414.09 = 114,964.97 : x - Step 2: Convert to fraction form
339,630.21/509,414.09 = 114,964.97/x - Step 3: Cross multiply
339,630.21x = 509,414.09 × 114,964.97 - Step 4: Simplify right side
339,630.21x = 58,564,774,362.83 - Step 5: Solve for x
x = 58,564,774,362.83/339,630.21 - Step 6: Final answer
x = 172,436.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.