Finding the Fourth Proportional to 396,524.28, 547,204.04 and 215,236.09
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Solution
The fourth proportional to 396,524.28, 547,204.04 and 215,236.09 is: 297,026.09
Step by Step Solution
- Step 1: Write the proportion equation
396,524.28 : 547,204.04 = 215,236.09 : x - Step 2: Convert to fraction form
396,524.28/547,204.04 = 215,236.09/x - Step 3: Cross multiply
396,524.28x = 547,204.04 × 215,236.09 - Step 4: Simplify right side
396,524.28x = 117,778,058,001.80 - Step 5: Solve for x
x = 117,778,058,001.80/396,524.28 - Step 6: Final answer
x = 297,026.09
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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.