Finding the Fourth Proportional to 239,623.75, 330,680.78 and 133,639.75
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Solution
The fourth proportional to 239,623.75, 330,680.78 and 133,639.75 is: 184,422.86
Step by Step Solution
- Step 1: Write the proportion equation
239,623.75 : 330,680.78 = 133,639.75 : x - Step 2: Convert to fraction form
239,623.75/330,680.78 = 133,639.75/x - Step 3: Cross multiply
239,623.75x = 330,680.78 × 133,639.75 - Step 4: Simplify right side
239,623.75x = 44,192,096,769.01 - Step 5: Solve for x
x = 44,192,096,769.01/239,623.75 - Step 6: Final answer
x = 184,422.86
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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.