Finding the Fourth Proportional to 371,311.39, 511,491.40 and 316,684.99
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Solution
The fourth proportional to 371,311.39, 511,491.40 and 316,684.99 is: 436,242.07
Step by Step Solution
- Step 1: Write the proportion equation
371,311.39 : 511,491.40 = 316,684.99 : x - Step 2: Convert to fraction form
371,311.39/511,491.40 = 316,684.99/x - Step 3: Cross multiply
371,311.39x = 511,491.40 × 316,684.99 - Step 4: Simplify right side
371,311.39x = 161,981,648,894.09 - Step 5: Solve for x
x = 161,981,648,894.09/371,311.39 - Step 6: Final answer
x = 436,242.07
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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.