Finding the Fourth Proportional to 272,616.10, 408,049.35 and 213,129.70
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Solution
The fourth proportional to 272,616.10, 408,049.35 and 213,129.70 is: 319,010.64
Step by Step Solution
- Step 1: Write the proportion equation
272,616.10 : 408,049.35 = 213,129.70 : x - Step 2: Convert to fraction form
272,616.10/408,049.35 = 213,129.70/x - Step 3: Cross multiply
272,616.10x = 408,049.35 × 213,129.70 - Step 4: Simplify right side
272,616.10x = 86,967,435,550.70 - Step 5: Solve for x
x = 86,967,435,550.70/272,616.10 - Step 6: Final answer
x = 319,010.64
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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.