Finding the Fourth Proportional to 209,877.55, 289,622.58 and 114,382.19
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Solution
The fourth proportional to 209,877.55, 289,622.58 and 114,382.19 is: 157,842.82
Step by Step Solution
- Step 1: Write the proportion equation
209,877.55 : 289,622.58 = 114,382.19 : x - Step 2: Convert to fraction form
209,877.55/289,622.58 = 114,382.19/x - Step 3: Cross multiply
209,877.55x = 289,622.58 × 114,382.19 - Step 4: Simplify right side
209,877.55x = 33,127,664,973.85 - Step 5: Solve for x
x = 33,127,664,973.85/209,877.55 - Step 6: Final answer
x = 157,842.82
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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.