Finding the Fourth Proportional to 396,523.28, 547,202.66 and 215,235.09
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Solution
The fourth proportional to 396,523.28, 547,202.66 and 215,235.09 is: 297,024.71
Step by Step Solution
- Step 1: Write the proportion equation
396,523.28 : 547,202.66 = 215,235.09 : x - Step 2: Convert to fraction form
396,523.28/547,202.66 = 215,235.09/x - Step 3: Cross multiply
396,523.28x = 547,202.66 × 215,235.09 - Step 4: Simplify right side
396,523.28x = 117,777,212,697.16 - Step 5: Solve for x
x = 117,777,212,697.16/396,523.28 - Step 6: Final answer
x = 297,024.71
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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.