Finding the Fourth Proportional to 388,650.78, 536,472.24 and 227,557.56
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Solution
The fourth proportional to 388,650.78, 536,472.24 and 227,557.56 is: 314,107.99
Step by Step Solution
- Step 1: Write the proportion equation
388,650.78 : 536,472.24 = 227,557.56 : x - Step 2: Convert to fraction form
388,650.78/536,472.24 = 227,557.56/x - Step 3: Cross multiply
388,650.78x = 536,472.24 × 227,557.56 - Step 4: Simplify right side
388,650.78x = 122,078,313,942.13 - Step 5: Solve for x
x = 122,078,313,942.13/388,650.78 - Step 6: Final answer
x = 314,107.99
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1.5x scale
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.