Finding the Fourth Proportional to 396,874.08, 547,686.81 and 215,586.05
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Solution
The fourth proportional to 396,874.08, 547,686.81 and 215,586.05 is: 297,509.06
Step by Step Solution
- Step 1: Write the proportion equation
396,874.08 : 547,686.81 = 215,586.05 : x - Step 2: Convert to fraction form
396,874.08/547,686.81 = 215,586.05/x - Step 3: Cross multiply
396,874.08x = 547,686.81 × 215,586.05 - Step 4: Simplify right side
396,874.08x = 118,073,633,266.57 - Step 5: Solve for x
x = 118,073,633,266.57/396,874.08 - Step 6: Final answer
x = 297,509.06
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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.