Finding the Fourth Proportional to 225,858.56, 311,682.68 and 123,881.99
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Solution
The fourth proportional to 225,858.56, 311,682.68 and 123,881.99 is: 170,955.97
Step by Step Solution
- Step 1: Write the proportion equation
225,858.56 : 311,682.68 = 123,881.99 : x - Step 2: Convert to fraction form
225,858.56/311,682.68 = 123,881.99/x - Step 3: Cross multiply
225,858.56x = 311,682.68 × 123,881.99 - Step 4: Simplify right side
225,858.56x = 38,611,868,469.11 - Step 5: Solve for x
x = 38,611,868,469.11/225,858.56 - Step 6: Final answer
x = 170,955.97
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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.