Finding the Fourth Proportional to 396,586.74, 547,291.17 and 215,299.02
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Solution
The fourth proportional to 396,586.74, 547,291.17 and 215,299.02 is: 297,113.44
Step by Step Solution
- Step 1: Write the proportion equation
396,586.74 : 547,291.17 = 215,299.02 : x - Step 2: Convert to fraction form
396,586.74/547,291.17 = 215,299.02/x - Step 3: Cross multiply
396,586.74x = 547,291.17 × 215,299.02 - Step 4: Simplify right side
396,586.74x = 117,831,252,555.65 - Step 5: Solve for x
x = 117,831,252,555.65/396,586.74 - Step 6: Final answer
x = 297,113.44
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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.