Finding the Fourth Proportional to 225,861.44, 311,683.43 and 123,885.99
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Solution
The fourth proportional to 225,861.44, 311,683.43 and 123,885.99 is: 170,959.73
Step by Step Solution
- Step 1: Write the proportion equation
225,861.44 : 311,683.43 = 123,885.99 : x - Step 2: Convert to fraction form
225,861.44/311,683.43 = 123,885.99/x - Step 3: Cross multiply
225,861.44x = 311,683.43 × 123,885.99 - Step 4: Simplify right side
225,861.44x = 38,613,209,672.72 - Step 5: Solve for x
x = 38,613,209,672.72/225,861.44 - Step 6: Final answer
x = 170,959.73
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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.