Finding the Fourth Proportional to 396,524.79, 547,204.73 and 215,236.59
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Solution
The fourth proportional to 396,524.79, 547,204.73 and 215,236.59 is: 297,026.77
Step by Step Solution
- Step 1: Write the proportion equation
396,524.79 : 547,204.73 = 215,236.59 : x - Step 2: Convert to fraction form
396,524.79/547,204.73 = 215,236.59/x - Step 3: Cross multiply
396,524.79x = 547,204.73 × 215,236.59 - Step 4: Simplify right side
396,524.79x = 117,778,479,040.89 - Step 5: Solve for x
x = 117,778,479,040.89/396,524.79 - Step 6: Final answer
x = 297,026.77
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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.