Finding the Fourth Proportional to 178,917.66, 246,929.68 and 115,440.12
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Solution
The fourth proportional to 178,917.66, 246,929.68 and 115,440.12 is: 159,322.41
Step by Step Solution
- Step 1: Write the proportion equation
178,917.66 : 246,929.68 = 115,440.12 : x - Step 2: Convert to fraction form
178,917.66/246,929.68 = 115,440.12/x - Step 3: Cross multiply
178,917.66x = 246,929.68 × 115,440.12 - Step 4: Simplify right side
178,917.66x = 28,505,591,890.76 - Step 5: Solve for x
x = 28,505,591,890.76/178,917.66 - Step 6: Final answer
x = 159,322.41
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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.