Finding the Fourth Proportional to 289,176.08, 433,714.91 and 78,764.81
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Solution
The fourth proportional to 289,176.08, 433,714.91 and 78,764.81 is: 118,133.80
Step by Step Solution
- Step 1: Write the proportion equation
289,176.08 : 433,714.91 = 78,764.81 : x - Step 2: Convert to fraction form
289,176.08/433,714.91 = 78,764.81/x - Step 3: Cross multiply
289,176.08x = 433,714.91 × 78,764.81 - Step 4: Simplify right side
289,176.08x = 34,161,469,917.92 - Step 5: Solve for x
x = 34,161,469,917.92/289,176.08 - Step 6: Final answer
x = 118,133.80
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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.