Finding the Fourth Proportional to 202,711.36, 279,673.20 and 131,181.76
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Solution
The fourth proportional to 202,711.36, 279,673.20 and 131,181.76 is: 180,986.52
Step by Step Solution
- Step 1: Write the proportion equation
202,711.36 : 279,673.20 = 131,181.76 : x - Step 2: Convert to fraction form
202,711.36/279,673.20 = 131,181.76/x - Step 3: Cross multiply
202,711.36x = 279,673.20 × 131,181.76 - Step 4: Simplify right side
202,711.36x = 36,688,022,600.83 - Step 5: Solve for x
x = 36,688,022,600.83/202,711.36 - Step 6: Final answer
x = 180,986.52
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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.