Finding the Fourth Proportional to 216,514.24, 298,781.62 and 121,022.53
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Solution
The fourth proportional to 216,514.24, 298,781.62 and 121,022.53 is: 167,006.60
Step by Step Solution
- Step 1: Write the proportion equation
216,514.24 : 298,781.62 = 121,022.53 : x - Step 2: Convert to fraction form
216,514.24/298,781.62 = 121,022.53/x - Step 3: Cross multiply
216,514.24x = 298,781.62 × 121,022.53 - Step 4: Simplify right side
216,514.24x = 36,159,306,520.39 - Step 5: Solve for x
x = 36,159,306,520.39/216,514.24 - Step 6: Final answer
x = 167,006.60
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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.