Finding the Fourth Proportional to 378,576.12, 522,362.34 and 227,682.84
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Solution
The fourth proportional to 378,576.12, 522,362.34 and 227,682.84 is: 314,158.59
Step by Step Solution
- Step 1: Write the proportion equation
378,576.12 : 522,362.34 = 227,682.84 : x - Step 2: Convert to fraction form
378,576.12/522,362.34 = 227,682.84/x - Step 3: Cross multiply
378,576.12x = 522,362.34 × 227,682.84 - Step 4: Simplify right side
378,576.12x = 118,932,941,080.25 - Step 5: Solve for x
x = 118,932,941,080.25/378,576.12 - Step 6: Final answer
x = 314,158.59
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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.