Finding the Fourth Proportional to 339,838.80, 509,628.60 and 103,102.80
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Solution
The fourth proportional to 339,838.80, 509,628.60 and 103,102.80 is: 154,614.88
Step by Step Solution
- Step 1: Write the proportion equation
339,838.80 : 509,628.60 = 103,102.80 : x - Step 2: Convert to fraction form
339,838.80/509,628.60 = 103,102.80/x - Step 3: Cross multiply
339,838.80x = 509,628.60 × 103,102.80 - Step 4: Simplify right side
339,838.80x = 52,544,135,620.08 - Step 5: Solve for x
x = 52,544,135,620.08/339,838.80 - Step 6: Final answer
x = 154,614.88
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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.