Finding the Fourth Proportional to 201,769.40, 278,421.17 and 124,232.74
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Solution
The fourth proportional to 201,769.40, 278,421.17 and 124,232.74 is: 171,428.49
Step by Step Solution
- Step 1: Write the proportion equation
201,769.40 : 278,421.17 = 124,232.74 : x - Step 2: Convert to fraction form
201,769.40/278,421.17 = 124,232.74/x - Step 3: Cross multiply
201,769.40x = 278,421.17 × 124,232.74 - Step 4: Simplify right side
201,769.40x = 34,589,022,809.84 - Step 5: Solve for x
x = 34,589,022,809.84/201,769.40 - Step 6: Final answer
x = 171,428.49
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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.