Finding the Fourth Proportional to 278,863.44, 418,296.56 and 68,501.44
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Solution
The fourth proportional to 278,863.44, 418,296.56 and 68,501.44 is: 102,752.50
Step by Step Solution
- Step 1: Write the proportion equation
278,863.44 : 418,296.56 = 68,501.44 : x - Step 2: Convert to fraction form
278,863.44/418,296.56 = 68,501.44/x - Step 3: Cross multiply
278,863.44x = 418,296.56 × 68,501.44 - Step 4: Simplify right side
278,863.44x = 28,653,916,707.05 - Step 5: Solve for x
x = 28,653,916,707.05/278,863.44 - Step 6: Final answer
x = 102,752.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.