Finding the Fourth Proportional to 306,625.74, 423,112.05 and 177,606.09
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Solution
The fourth proportional to 306,625.74, 423,112.05 and 177,606.09 is: 245,078.18
Step by Step Solution
- Step 1: Write the proportion equation
306,625.74 : 423,112.05 = 177,606.09 : x - Step 2: Convert to fraction form
306,625.74/423,112.05 = 177,606.09/x - Step 3: Cross multiply
306,625.74x = 423,112.05 × 177,606.09 - Step 4: Simplify right side
306,625.74x = 75,147,276,832.38 - Step 5: Solve for x
x = 75,147,276,832.38/306,625.74 - Step 6: Final answer
x = 245,078.18
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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.