Finding the Fourth Proportional to 298,979.36, 448,625.20 and 121,617.44
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Solution
The fourth proportional to 298,979.36, 448,625.20 and 121,617.44 is: 182,489.68
Step by Step Solution
- Step 1: Write the proportion equation
298,979.36 : 448,625.20 = 121,617.44 : x - Step 2: Convert to fraction form
298,979.36/448,625.20 = 121,617.44/x - Step 3: Cross multiply
298,979.36x = 448,625.20 × 121,617.44 - Step 4: Simplify right side
298,979.36x = 54,560,648,343.49 - Step 5: Solve for x
x = 54,560,648,343.49/298,979.36 - Step 6: Final answer
x = 182,489.68
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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.