Finding the Fourth Proportional to 268,934.70, 371,129.88 and 149,702.70
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Solution
The fourth proportional to 268,934.70, 371,129.88 and 149,702.70 is: 206,589.72
Step by Step Solution
- Step 1: Write the proportion equation
268,934.70 : 371,129.88 = 149,702.70 : x - Step 2: Convert to fraction form
268,934.70/371,129.88 = 149,702.70/x - Step 3: Cross multiply
268,934.70x = 371,129.88 × 149,702.70 - Step 4: Simplify right side
268,934.70x = 55,559,145,086.68 - Step 5: Solve for x
x = 55,559,145,086.68/268,934.70 - Step 6: Final answer
x = 206,589.72
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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.