Finding the Fourth Proportional to 209,963.56, 289,750.62 and 134,555.80
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Solution
The fourth proportional to 209,963.56, 289,750.62 and 134,555.80 is: 185,687.59
Step by Step Solution
- Step 1: Write the proportion equation
209,963.56 : 289,750.62 = 134,555.80 : x - Step 2: Convert to fraction form
209,963.56/289,750.62 = 134,555.80/x - Step 3: Cross multiply
209,963.56x = 289,750.62 × 134,555.80 - Step 4: Simplify right side
209,963.56x = 38,987,626,474.60 - Step 5: Solve for x
x = 38,987,626,474.60/209,963.56 - Step 6: Final answer
x = 185,687.59
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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.