Finding the Fourth Proportional to 274,491.41, 378,711.79 and 153,613.49
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Solution
The fourth proportional to 274,491.41, 378,711.79 and 153,613.49 is: 211,938.29
Step by Step Solution
- Step 1: Write the proportion equation
274,491.41 : 378,711.79 = 153,613.49 : x - Step 2: Convert to fraction form
274,491.41/378,711.79 = 153,613.49/x - Step 3: Cross multiply
274,491.41x = 378,711.79 × 153,613.49 - Step 4: Simplify right side
274,491.41x = 58,175,239,766.05 - Step 5: Solve for x
x = 58,175,239,766.05/274,491.41 - Step 6: Final answer
x = 211,938.29
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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.