Finding the Fourth Proportional to 295,864.75, 408,293.40 and 161,728.75
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Solution
The fourth proportional to 295,864.75, 408,293.40 and 161,728.75 is: 223,185.70
Step by Step Solution
- Step 1: Write the proportion equation
295,864.75 : 408,293.40 = 161,728.75 : x - Step 2: Convert to fraction form
295,864.75/408,293.40 = 161,728.75/x - Step 3: Cross multiply
295,864.75x = 408,293.40 × 161,728.75 - Step 4: Simplify right side
295,864.75x = 66,032,781,215.25 - Step 5: Solve for x
x = 66,032,781,215.25/295,864.75 - Step 6: Final answer
x = 223,185.70
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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.