Finding the Fourth Proportional to 378,852.99, 522,884.85 and 225,901.02
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Solution
The fourth proportional to 378,852.99, 522,884.85 and 225,901.02 is: 311,783.79
Step by Step Solution
- Step 1: Write the proportion equation
378,852.99 : 522,884.85 = 225,901.02 : x - Step 2: Convert to fraction form
378,852.99/522,884.85 = 225,901.02/x - Step 3: Cross multiply
378,852.99x = 522,884.85 × 225,901.02 - Step 4: Simplify right side
378,852.99x = 118,120,220,957.55 - Step 5: Solve for x
x = 118,120,220,957.55/378,852.99 - Step 6: Final answer
x = 311,783.79
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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.