Finding the Fourth Proportional to 396,759.36, 547,526.16 and 215,469.84
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Solution
The fourth proportional to 396,759.36, 547,526.16 and 215,469.84 is: 297,347.43
Step by Step Solution
- Step 1: Write the proportion equation
396,759.36 : 547,526.16 = 215,469.84 : x - Step 2: Convert to fraction form
396,759.36/547,526.16 = 215,469.84/x - Step 3: Cross multiply
396,759.36x = 547,526.16 × 215,469.84 - Step 4: Simplify right side
396,759.36x = 117,975,374,091.01 - Step 5: Solve for x
x = 117,975,374,091.01/396,759.36 - Step 6: Final answer
x = 297,347.43
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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.