Finding the Fourth Proportional to 209,615.04, 289,259.10 and 114,121.44
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Solution
The fourth proportional to 209,615.04, 289,259.10 and 114,121.44 is: 157,482.33
Step by Step Solution
- Step 1: Write the proportion equation
209,615.04 : 289,259.10 = 114,121.44 : x - Step 2: Convert to fraction form
209,615.04/289,259.10 = 114,121.44/x - Step 3: Cross multiply
209,615.04x = 289,259.10 × 114,121.44 - Step 4: Simplify right side
209,615.04x = 33,010,665,025.10 - Step 5: Solve for x
x = 33,010,665,025.10/209,615.04 - Step 6: Final answer
x = 157,482.33
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1.5x scale
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.