Finding the Fourth Proportional to 396,898.84, 547,724.19 and 215,612.13
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Solution
The fourth proportional to 396,898.84, 547,724.19 and 215,612.13 is: 297,546.80
Step by Step Solution
- Step 1: Write the proportion equation
396,898.84 : 547,724.19 = 215,612.13 : x - Step 2: Convert to fraction form
396,898.84/547,724.19 = 215,612.13/x - Step 3: Cross multiply
396,898.84x = 547,724.19 × 215,612.13 - Step 4: Simplify right side
396,898.84x = 118,095,979,258.43 - Step 5: Solve for x
x = 118,095,979,258.43/396,898.84 - Step 6: Final answer
x = 297,546.80
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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.