Finding the Fourth Proportional to 298,975.36, 448,619.20 and 121,613.44
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Solution
The fourth proportional to 298,975.36, 448,619.20 and 121,613.44 is: 182,483.68
Step by Step Solution
- Step 1: Write the proportion equation
298,975.36 : 448,619.20 = 121,613.44 : x - Step 2: Convert to fraction form
298,975.36/448,619.20 = 121,613.44/x - Step 3: Cross multiply
298,975.36x = 448,619.20 × 121,613.44 - Step 4: Simplify right side
298,975.36x = 54,558,124,162.05 - Step 5: Solve for x
x = 54,558,124,162.05/298,975.36 - Step 6: Final answer
x = 182,483.68
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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.