Finding the Fourth Proportional to 327,854.09, 491,738.07 and 103,215.70
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Solution
The fourth proportional to 327,854.09, 491,738.07 and 103,215.70 is: 154,809.99
Step by Step Solution
- Step 1: Write the proportion equation
327,854.09 : 491,738.07 = 103,215.70 : x - Step 2: Convert to fraction form
327,854.09/491,738.07 = 103,215.70/x - Step 3: Cross multiply
327,854.09x = 491,738.07 × 103,215.70 - Step 4: Simplify right side
327,854.09x = 50,755,089,111.70 - Step 5: Solve for x
x = 50,755,089,111.70/327,854.09 - Step 6: Final answer
x = 154,809.99
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1.5x scale
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.