Finding the Fourth Proportional to 178,863.12, 268,350.84 and 73,731.60
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Solution
The fourth proportional to 178,863.12, 268,350.84 and 73,731.60 is: 110,620.55
Step by Step Solution
- Step 1: Write the proportion equation
178,863.12 : 268,350.84 = 73,731.60 : x - Step 2: Convert to fraction form
178,863.12/268,350.84 = 73,731.60/x - Step 3: Cross multiply
178,863.12x = 268,350.84 × 73,731.60 - Step 4: Simplify right side
178,863.12x = 19,785,936,794.54 - Step 5: Solve for x
x = 19,785,936,794.54/178,863.12 - Step 6: Final answer
x = 110,620.55
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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.