Finding the Fourth Proportional to 378,864.99, 522,901.41 and 225,913.02
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Solution
The fourth proportional to 378,864.99, 522,901.41 and 225,913.02 is: 311,800.35
Step by Step Solution
- Step 1: Write the proportion equation
378,864.99 : 522,901.41 = 225,913.02 : x - Step 2: Convert to fraction form
378,864.99/522,901.41 = 225,913.02/x - Step 3: Cross multiply
378,864.99x = 522,901.41 × 225,913.02 - Step 4: Simplify right side
378,864.99x = 118,130,236,695.36 - Step 5: Solve for x
x = 118,130,236,695.36/378,864.99 - Step 6: Final answer
x = 311,800.35
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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.