Finding the Fourth Proportional to 200,289.11, 276,403.84 and 109,644.79
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Solution
The fourth proportional to 200,289.11, 276,403.84 and 109,644.79 is: 151,312.48
Step by Step Solution
- Step 1: Write the proportion equation
200,289.11 : 276,403.84 = 109,644.79 : x - Step 2: Convert to fraction form
200,289.11/276,403.84 = 109,644.79/x - Step 3: Cross multiply
200,289.11x = 276,403.84 × 109,644.79 - Step 4: Simplify right side
200,289.11x = 30,306,240,991.99 - Step 5: Solve for x
x = 30,306,240,991.99/200,289.11 - Step 6: Final answer
x = 151,312.48
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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.