Finding the Fourth Proportional to 186,452.28, 279,415.44 and 139,737.96
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Solution
The fourth proportional to 186,452.28, 279,415.44 and 139,737.96 is: 209,409.85
Step by Step Solution
- Step 1: Write the proportion equation
186,452.28 : 279,415.44 = 139,737.96 : x - Step 2: Convert to fraction form
186,452.28/279,415.44 = 139,737.96/x - Step 3: Cross multiply
186,452.28x = 279,415.44 × 139,737.96 - Step 4: Simplify right side
186,452.28x = 39,044,943,578.10 - Step 5: Solve for x
x = 39,044,943,578.10/186,452.28 - Step 6: Final answer
x = 209,409.85
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.