Finding the Fourth Proportional to 178,863.74, 246,778.14 and 107,217.62
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Solution
The fourth proportional to 178,863.74, 246,778.14 and 107,217.62 is: 147,928.05
Step by Step Solution
- Step 1: Write the proportion equation
178,863.74 : 246,778.14 = 107,217.62 : x - Step 2: Convert to fraction form
178,863.74/246,778.14 = 107,217.62/x - Step 3: Cross multiply
178,863.74x = 246,778.14 × 107,217.62 - Step 4: Simplify right side
178,863.74x = 26,458,964,838.83 - Step 5: Solve for x
x = 26,458,964,838.83/178,863.74 - Step 6: Final answer
x = 147,928.05
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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.