Finding the Fourth Proportional to 209,621.08, 289,277.08 and 114,127.75
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Solution
The fourth proportional to 209,621.08, 289,277.08 and 114,127.75 is: 157,496.29
Step by Step Solution
- Step 1: Write the proportion equation
209,621.08 : 289,277.08 = 114,127.75 : x - Step 2: Convert to fraction form
209,621.08/289,277.08 = 114,127.75/x - Step 3: Cross multiply
209,621.08x = 289,277.08 × 114,127.75 - Step 4: Simplify right side
209,621.08x = 33,014,542,266.97 - Step 5: Solve for x
x = 33,014,542,266.97/209,621.08 - Step 6: Final answer
x = 157,496.29
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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.