Finding the Fourth Proportional to 395,105.05, 545,246.30 and 213,816.92
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Solution
The fourth proportional to 395,105.05, 545,246.30 and 213,816.92 is: 295,068.08
Step by Step Solution
- Step 1: Write the proportion equation
395,105.05 : 545,246.30 = 213,816.92 : x - Step 2: Convert to fraction form
395,105.05/545,246.30 = 213,816.92/x - Step 3: Cross multiply
395,105.05x = 545,246.30 × 213,816.92 - Step 4: Simplify right side
395,105.05x = 116,582,885,382.72 - Step 5: Solve for x
x = 116,582,885,382.72/395,105.05 - Step 6: Final answer
x = 295,068.08
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1.5x scale
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.