Finding the Fourth Proportional to 396,574.92, 547,274.09 and 226,809.05
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Solution
The fourth proportional to 396,574.92, 547,274.09 and 226,809.05 is: 312,996.88
Step by Step Solution
- Step 1: Write the proportion equation
396,574.92 : 547,274.09 = 226,809.05 : x - Step 2: Convert to fraction form
396,574.92/547,274.09 = 226,809.05/x - Step 3: Cross multiply
396,574.92x = 547,274.09 × 226,809.05 - Step 4: Simplify right side
396,574.92x = 124,126,712,572.10 - Step 5: Solve for x
x = 124,126,712,572.10/396,574.92 - Step 6: Final answer
x = 312,996.88
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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.