Finding the Fourth Proportional to 308,197.62, 424,521.72 and 217,394.01
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Solution
The fourth proportional to 308,197.62, 424,521.72 and 217,394.01 is: 299,445.79
Step by Step Solution
- Step 1: Write the proportion equation
308,197.62 : 424,521.72 = 217,394.01 : x - Step 2: Convert to fraction form
308,197.62/424,521.72 = 217,394.01/x - Step 3: Cross multiply
308,197.62x = 424,521.72 × 217,394.01 - Step 4: Simplify right side
308,197.62x = 92,288,479,042.90 - Step 5: Solve for x
x = 92,288,479,042.90/308,197.62 - Step 6: Final answer
x = 299,445.79
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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.